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   "layerId": 0,
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   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
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     "label": "Pennsylvanian, Amazonia Limeston Mbr of the Lawrence Shale through Tonganoxie Ss Mbr of the Stranger Formation",
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     "label": "Pennsylvanian, Kansas City",
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    {
     "label": "Pennsylvanian, upper Zarah Subgroup",
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     "groupId": "0",
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     "label": "Pennsylvanian, middle Zarah Subgroup",
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     "groupId": "0",
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     "label": "Pennsylvanian, lower Zarah Subgroup",
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     "label": "Pennsylvanian, Argentine Limestone Member of Wyandotte Formation",
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     "label": "Pennsylvanian, lower Linn Subgroup",
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     "groupId": "0",
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     "values": [
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    },
    {
     "label": "Pennsylvanian, Bronson Subgroup",
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     "contentType": "image/png",
     "groupId": "0",
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     "values": [
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    },
    {
     "label": "Pennsylvanian, upper Bronson Subgroup",
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     "contentType": "image/png",
     "groupId": "0",
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     "values": [
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    },
    {
     "label": "Pennsylvanian, lower Bronson Subgroup",
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    },
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     "label": "Pennsylvanian, Bonner Springs and Wyandotte formations",
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     "values": [
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    },
    {
     "label": "Pennsylvanian, Lane, Iola, Chanute and Drum formations",
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     "groupId": "0",
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     "values": [
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    },
    {
     "label": "Pennsylvanian, Cherryvale and Dennis formations",
     "url": "04344ac87d4a0ee56d40961222e45ba1",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQklEQVQ4jWNZ/L/EgYGBAYSpAQ6wQAz7X08d8xgZQAZSFbCMGkgxYKHcCFQwaiDlgIUKZqCAUQNHShgeAJW0VAIHAJj+BucsYHW6AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Pennsylvanina unnamed sandstone",
     "url": "2ded75e32091c2ebb9ffe1c3fc15fc30",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UsQ0AIAwDQRN5MDZjGBZhD0ZBilBK6rgjP8AVLsx9ZndYhyCDLwbWgKEAHQZCHAtMxzzxVmA+CoynAr/Y0OArnlZRWBe98A1KaYPDCwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Pennsylvanian, Pleasanton",
     "url": "6c8eb6eaf1911fd7cf00ed8e8cd04d7f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARElEQVQ4jWPZfFrDgYGBAYSpAQ6wgA1jZKininH/GRhABlIVsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dKGB4AlbRUAgcA2UgHdSYtU5sAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Pennsylvanian, Marmaton",
     "url": "4232b9579ce93fe765199a010f57d289",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATUlEQVQ4je3UMRHAMAxDUcUnYGFWKIVQCuYSHmovY2Zrqz+AN2gQ7/VMREw4kpIbG8Dl8N4IEObYYDnWibMG69FgHDX4jw2l3E9rScoPJwsOBK6jGwEAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Pennsylvanian channel sandstones",
     "url": "8f000f7730ec6e7cf25a2a94d4182794",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UsRHAIBADwTOjwujMRbggyOkJe3BG/Mr4K2ADBdIzWi1QMTSh68cubgdYXhDmlGA4xYm9BOPJYGwleMSGE/p6WkfL+gA8NQruAbGdBAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Pennsylvanian, Cherokee",
     "url": "3c8d06300944e2aa2ad94bbbc34af7ab",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4jWMR+X/ZgeHfPwcGagAmpgMsYMMYGeupYuC/fwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwJERhkxMB0AlLVUAE9MBAOSADbQgG4BiAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Pennsylvanian, Cherokee, Cabaniss",
     "url": "08c44267ce577c3b0da06a8610a34f7d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4jWMx+Xzc4R8TgwMDFQDTP4YDLFDD6qlh4D8mBgYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIQ6Z/DAdAJS01AMgsAEt2DL7LL2xNAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Pennsylvanian, Fort Scott Subgroup of Marmaton Group",
     "url": "dae0fa151bc4605802e2aac391a984c8",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UMREAIRBD0Q8TYTg7UWcAP3hgmC2pNx37BbwiRfSvNTYMDHWYCqzB5wA3IMypwHTKE3cF5pPBuCrwiQ07zHhaR2EdtVoKWGWih/IAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Pennsylvanian, Cherokee, Krebs",
     "url": "2ded75e32091c2ebb9ffe1c3fc15fc30",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UsQ0AIAwDQRN5MDZjGBZhD0ZBilBK6rgjP8AVLsx9ZndYhyCDLwbWgKEAHQZCHAtMxzzxVmA+CoynAr/Y0OArnlZRWBe98A1KaYPDCwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Pennsylvanian, Krebs Subgroup",
     "url": "4d5aeffadb6e54fb460e5d12d2cb6237",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UMREAIAxD0dCLMJwhDdzgonAcE3Oz0S/gDRnCuXo1eIUghw1erDQFaHAQ4phgOMaJtwTjUWA8JfjFhg4b52kVHWsD0g0Nduxc/4kAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Pennsylvanian, Atokan Series, Riverton Formation",
     "url": "7b8e92f3ef43ee5acda97edc5c1213bc",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAR0lEQVQ4jWPZ/XuzAwMDAwhTAxxgARnGyMhQTw3T/v9nYAAZSFXAMmogxYCFciNQwaiBlAMWKpiBAkYNHClheABU0lIJHAAAq9wKN5OF/fsAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Pennsylvanian, basal facies",
     "url": "2ded75e32091c2ebb9ffe1c3fc15fc30",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UsQ0AIAwDQRN5MDZjGBZhD0ZBilBK6rgjP8AVLsx9ZndYhyCDLwbWgKEAHQZCHAtMxzzxVmA+CoynAr/Y0OArnlZRWBe98A1KaYPDCwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mississippian System",
     "url": "3291076c206314a118ee1bb022dc0ff1",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARklEQVQ4jWOZfvuzAwPDPwcGqgCmAywQwxjrqWPgPwYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4AgJQ6YDoJKWOoDpAADJoQo07XWT4gAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Mississippian, Chesterian Series",
     "url": "9880c07d17a04912bb40eb30b5a5a83d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARElEQVQ4jWO5X/LfgYGBAYSpAQ6wgA37z1BPFeMYGRhABlIVsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dKGB4AlbRUAgcAFQYHIzGJdrIAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mississippian, Meramecian Series",
     "url": "d8c24eefefa4c9b6a3b3ff540f4a4119",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWO5fvm3w79/DA4MVABMTAwHWECGMTIy1lPDwH///jOwMFAZsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dEGDIxMRwAlbTUACCzAKLqEHIzPgDJAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Mississippian, Ste. Genevieve",
     "url": "c7a6770874bfe142a5cece1cd078a3a1",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UMRHAMAxDUVsnYGFWaDWTAigHJ5cxs7XFH8AbNIjv9w/LHKYICG7M3R+FNzONJo4NlmOdOGuwHgXGUYN3bAjEflpJQCzt2xBW4I89VQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mississippian, St. Louis",
     "url": "e242e67a09f8d18e0549fc0b5b28cfac",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UMREAIAxD0dCLMJwhjAUv+CgcbMzNRr+AN2QI+1zV4BWCHDZ4sVKaArTlIMQxwXCME28JxqPAeErwiw0dNs7TKjrWBp9oD20kQrZXAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mississippian, Salem Formation",
     "url": "3291076c206314a118ee1bb022dc0ff1",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARklEQVQ4jWOZfvuzAwPDPwcGqgCmAywQwxjrqWPgPwYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4AgJQ6YDoJKWOoDpAADJoQo07XWT4gAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Mississippian, Salem & Warsaw",
     "url": "63fa5d2f33272bdb1b3837bf7de08a31",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UsQ0AIAwDQRN5MEZiA1ZDYq+AoKOOO/IDXOHCbHNVh1cIMtjgxUrpCtCXgxDHBMMxTrwlGI8C4ynBLzY02DhPq+hYG8N+D/4OeZyvAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Mississippian, Warsaw Formation",
     "url": "63fa5d2f33272bdb1b3837bf7de08a31",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UsQ0AIAwDQRN5MEZiA1ZDYq+AoKOOO/IDXOHCbHNVh1cIMtjgxUrpCtCXgxDHBMMxTrwlGI8C4ynBLzY02DhPq+hYG8N+D/4OeZyvAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Mississippian, Osagean Series",
     "url": "9882f64a1a630fea68b29c6e1528d0dd",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASUlEQVQ4je3UsQ3AIBBD0Q/yYGyW0cJekQi6kvrccX+AV7iw3u8fCwaGOkwF1uBxgAsQ5lRgOuWJswLzyWAcFXjFhh1mPK2jsDbkwQqIpMBEigAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Mississippian, Burlington-Keokuk",
     "url": "4ed527f7eb31b2304c64fb8560d239b3",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UsQ0AIAwDQRN5MDZjNSTGQgooJXXckR/gChfm2qc7vEOQwSYDa2hDATochDgWmI554q3AfBQYTwV+saHBZjytorAuODoOi4GzgfgAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Mississippian, Fern Glen Formation",
     "url": "a27a0f31531ea74a08857ab5966cb33f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAR0lEQVQ4je3UMREAIAxD0dCLMJxhrR7wUzjYmJuNfgFvyBBirg5EhyRzXqy1IfFWgBDHAtMxT7wVmI8C46nATzY0P0+ryXwDKBILoFITvWQAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mississippian, Grand Falls",
     "url": "834c4c6d9ce501e1232bec5c48057e88",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UsRHAMAxCUaxjqJTeLKtpj+yCcy5di876A7yCAj7fmghNOFIkN7YwXoc3QiDMscFyrBNnDdajwThq8I4NFbmf1pIifys3DeQDLfSSAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mississippian, Elsey & Reeds Spring",
     "url": "0a31140701ef785df28edd80f9ebe41e",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASElEQVQ4jWOZfvu1AwPDPwcGqgCmAyxgwxgZ66li3v9/DCwMVAYsowZSDFgoNwIVjBpIOWChghkoYNTAERKGTAdAJS11ANMBAJdwDCt3KFrKAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mississippian, Reeds Spring",
     "url": "0a31140701ef785df28edd80f9ebe41e",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASElEQVQ4jWOZfvu1AwPDPwcGqgCmAyxgwxgZ66li3v9/DCwMVAYsowZSDFgoNwIVjBpIOWChghkoYNTAERKGTAdAJS11ANMBAJdwDCt3KFrKAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mississippian, Elsey Formatiom",
     "url": "36f13687dc706a32f6b8b827d57752d9",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASUlEQVQ4je3UMREAIAxD0dCLMJwhjXphxANwjMzNRr+AN2QI+5gVWBWSzHmxgtIU3MYCIY4JhmOceEswHgXGU4KfbGh+n1aT+QHJBgxb+yLTsAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mississippian, Osagean and Kinderhookian Series",
     "url": "212a44b05e6ee4c940b578e07f47050f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4jWO5/vi3AwMTgwMDNcA/hgMsEMMY66liINN/BhYGKgOWUQMpBiyUG4EKRg2kHLBQwQwUMGrgyAjDfwwHQCUtVcA/hgMA+BkLhjSFIEsAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Mississippian, Kinderhookian Series & Pierson",
     "url": "7b1fc6d858f2ae441b71a242a96e4c7b",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UsQ0AIQxD0cTyYGzGapGuuK0CoqSOO/IHeIUL8//WsMxhioDgwdx9KryVaTRxbLAc68Rdg/UoMK4afGNDIM7TSgJiA+3PEFaslKdpAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mississippian, Pierson Formation",
     "url": "7b1fc6d858f2ae441b71a242a96e4c7b",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UsQ0AIQxD0cTyYGzGapGuuK0CoqSOO/IHeIUL8//WsMxhioDgwdx9KryVaTRxbLAc68Rdg/UoMK4afGNDIM7TSgJiA+3PEFaslKdpAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mississippian, Chouteau Group and Fern Glen Formation",
     "url": "b13343b6f866c326b2af53852d691afa",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UsRHAIBADwYNRYXTm0kw37gI8HxK/Mv4K2ECB9H57LBgY6jAVWGs8DnBtEOZUYDrlibMC88lgHBV4xYYdZjyto7B+ZrAMc0U376AAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mississippian, Sedalia Formation",
     "url": "3291076c206314a118ee1bb022dc0ff1",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARklEQVQ4jWOZfvuzAwPDPwcGqgCmAywQwxjrqWPgPwYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4AgJQ6YDoJKWOoDpAADJoQo07XWT4gAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mcs"
     ]
    },
    {
     "label": "Mississippian, Northview Formation",
     "url": "b3932c84c35105e92513c3671c97e323",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAR0lEQVQ4jWM5/fq1AwMDAwhTAxxgARnGyMBQTw3T/jMwMIAMpCpgGTWQYsBCuRGoYNRAygELFcxAAaMGjpQwPAAqaakEDgAADWsIcMIMn0YAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mn"
     ]
    },
    {
     "label": "Mississippian, Compton Limestone",
     "url": "a64a03a6a425358b1c77ed57437825f1",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATUlEQVQ4je3UMRHAMBADwbNHwMwsoELAfaCEg5P50vWr8x+ALVRI9/OOBQNDHaYCa43LAa4PhDkVmE55Yq/AfDIYWwUesWGHGU/rKKwf62IMN4z0w50AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mc"
     ]
    },
    {
     "label": "Mississippian, Chouteau Group",
     "url": "b3932c84c35105e92513c3671c97e323",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAR0lEQVQ4jWM5/fq1AwMDAwhTAxxgARnGyMBQTw3T/jMwMIAMpCpgGTWQYsBCuRGoYNRAygELFcxAAaMGjpQwPAAqaakEDgAADWsIcMIMn0YAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mch"
     ]
    },
    {
     "label": "Mississippian, Bachelor Sandstone",
     "url": "62e8698994690f0363783561103251c4",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATUlEQVQ4jWPJqDjt8I+ByYGBCoCJ4d8BFrBh/xnqqWHgP0YmBhYGKgOWUQMpBiyUG4EKRg2kHLBQwQwUMGrgiAhDJoZ/B0AlLTUAyCwAnm0NfIHIFG0AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mba"
     ]
    },
    {
     "label": "Mississippian, Kinderhookian Series",
     "url": "8c81588c1c9aeafa6153bd7390d27907",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPklEQVQ4jWNhKPjvwMDAAMLUAAdYoIbVU8lABpCBVAUsowZSDFgoNwIVjBpIOWChghkoYNTAkRKGB6ho3gEAe7oFP0FgnzEAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mk(u)"
     ]
    },
    {
     "label": "Mississippian, Kinderhookian Series/ Devonian System undifferentiated",
     "url": "dbf96e717fd46d350e23ad9a09d3277b",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UMREAIAxD0dCLMJwhCgM4wUnhOjI3G/0C3pAhnPt0d3QIMsNiYK1hKEB3gBDHAtMxT7wVmI8C46nALzY0w4qnVRTWBSYCDl8rmbyfAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "MkD(u)"
     ]
    },
    {
     "label": "Mississippian/Devonian undifferentiated",
     "url": "bab1765dc1ad4ac507902bdfbfbd00f5",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQ0lEQVQ4jWPZfPy3AwMDAwhTAxxggRjGWE8d8/4zgAykKmAZNZBiwEK5Eahg1EDKAQsVzEABowaOlDA8ACppqQQOAADzDwhEFE/irwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "MD(u)"
     ]
    },
    {
     "label": "Devonian System",
     "url": "9880c07d17a04912bb40eb30b5a5a83d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARElEQVQ4jWO5X/LfgYGBAYSpAQ6wgA37z1BPFeMYGRhABlIVsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dKGB4AlbRUAgcAFQYHIzGJdrIAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "D(u)"
     ]
    },
    {
     "label": "Devonian unassigned sandstone",
     "url": "05abe6178903c40af549d88bb762996b",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UsQ0AIAwDQRN5MDZjFFZBYgi2iVBK6rgjP8AVLsw9T3dHhyAzLAbWGoYCdAcIcSwwHfPEW4H5KDCeCvxiQzOseFpFYV353Q4HM+tDGwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Dss"
     ]
    },
    {
     "label": "Devonian, Snyder Creek Shale",
     "url": "7a22b0a96dd0f8e10067541fba9795a8",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARUlEQVQ4je3UoQ0AQAhD0ZJ0sNvsVsMzFBckmrrjJ9gnKmBEHgB1ipyFmeEqtEygQGlccBznRG/BeRQYrQV/2dDr04ryB8HHCmO2yJXSAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Dsc"
     ]
    },
    {
     "label": "Devonian, Grassy Creek Shale",
     "url": "9880c07d17a04912bb40eb30b5a5a83d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARElEQVQ4jWO5X/LfgYGBAYSpAQ6wgA37z1BPFeMYGRhABlIVsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dKGB4AlbRUAgcAFQYHIzGJdrIAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Dgc"
     ]
    },
    {
     "label": "Devonian, Sulfur Springs Group",
     "url": "9880c07d17a04912bb40eb30b5a5a83d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARElEQVQ4jWO5X/LfgYGBAYSpAQ6wgA37z1BPFeMYGRhABlIVsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dKGB4AlbRUAgcAFQYHIzGJdrIAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Dss(u)"
     ]
    },
    {
     "label": "Devonian, Bushberg",
     "url": "db88e9761b1d55f8ca8ec4024860d83c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UMREAIAxD0dCLMJxhDQfIYStcR+Zmo1/AGzKEZ+3uhg5B5pgMrAFDAboBhDgWmI554q3AfBQYTwV+saE5ZjytorAuoTgNlgoGkKsAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Dssb"
     ]
    },
    {
     "label": "Devonian, Fortune",
     "url": "dde81793b10f5fe2106c2257b554cb4a",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UMREAIAxD0dCLMJwhBiN4wUfhOjI3G/0C3pAhPHN3h3UIMvhiYK1hKEA/BkIcC0zHPPFWYD4KjKcCv9jQ4CueVlFYFwoSD1VlvHOGAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Df"
     ]
    },
    {
     "label": "Devonian, Cedar Valley Limestone",
     "url": "cd66fb31a9aae0d77296a71b5795a357",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UsRHAIBADwYNRYXTmYtwIfbgX8HxI/Mr4K2ADBdJ+v7FgYKjDVGCt8TjAtUGYU4HplCfOCswng3FU4BUbdpjxtI7C+gFqNQxLKfEeegAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Dcv"
     ]
    },
    {
     "label": "Ordovician, maquoketa Group",
     "url": "32f4e847f2b0eefb7624a72272a56057",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UMREAIAxD0dCLMJwhBiO4wE3hOjI3G/0C3pAhPHt2N3QIMsdiYA1tKEC3A0IcC0zHPPFWYD4KjKcCv9jQHCueVlFYF79uD0kfGOnVAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Om"
     ]
    },
    {
     "label": "Ordovician, maquoketa Group & Kimmswick Ls",
     "url": "93424f95d0c10559c1a039d8518a9b15",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4jWN5fny6AxMDgwMDFcA/BoYDLFDD6qlhIBMDAwMLA5UBy6iBFAMWyo1ABaMGUg5YqGAGChg1cESE4T8GhgOgkpYaAGQWADk5CRd5+iFhAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Omk"
     ]
    },
    {
     "label": "Ordovician, Kimmswick",
     "url": "888207ac2a497fe79c87ba9a9d31f9aa",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATUlEQVQ4je3UMRHAMBADwbNHwMwsMELHXcCEg5P50vWr8x+ALVRI73OPBQNDHaYCa43LAa4PhDkVmE55Yq/AfDIYWwUesWGHGU/rKKwfIa4MF5UuEMEAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Ok"
     ]
    },
    {
     "label": "Ordovician, Kimmswick & Decorah",
     "url": "4573dd514c077331661c065fec82dcb4",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UsRGAQAwDwcOjwr4ziqChr8wwDj+2MnwFbKBAeh9WBgtDkWwVdsHtADNAmNOA7dQnzgbsJ4NxNOAvNoxk19M6KusDDXAMY7N2gKkAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Okd"
     ]
    },
    {
     "label": "Ordovician, Decorah & Plattin",
     "url": "7121392a707cf751067c1e521268d662",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4jWO5P9vCgYGByYGBKuDfARaQYYwM/+upYdx/BiYGFgYqA5ZRAykGLJQbgQpGDaQcsFDBDBQwauAICcN/B0AlLXXAvwMAiu4LgnkAF7QAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Odp"
     ]
    },
    {
     "label": "Ordovician, Decorah Group",
     "url": "4573dd514c077331661c065fec82dcb4",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UsRGAQAwDwcOjwr4ziqChr8wwDj+2MnwFbKBAeh9WBgtDkWwVdsHtADNAmNOA7dQnzgbsJ4NxNOAvNoxk19M6KusDDXAMY7N2gKkAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Od"
     ]
    },
    {
     "label": "Ordovician, Plattin Group",
     "url": "7121392a707cf751067c1e521268d662",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4jWO5P9vCgYGByYGBKuDfARaQYYwM/+upYdx/BiYGFgYqA5ZRAykGLJQbgQpGDaQcsFDBDBQwauAICcN/B0AlLXXAvwMAiu4LgnkAF7QAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Op"
     ]
    },
    {
     "label": "Ordovician, Joachim Dolomite",
     "url": "e3df863bd63b5874b4b517cfd7f961c3",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWN5vbrC4R8TgwMDFQDTP4YDLCDDGBn+11PDwH9MjAwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhkz/GA6ASlpqAJBZABklDeCgzOcUAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Oj"
     ]
    },
    {
     "label": "Ordovician, St. Peter Sandstone",
     "url": "38cfda11fde4539b2ce44e817e2915ab",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4jWO5PzvBgYGByYGBKuDfARaQYYyM/+upYdz//0wMLAxUBiyjBlIMWCg3AhWMGkg5YKGCGShg1MAREob/DoBKWuqAfwcAh/wNqejFXvoAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Osp"
     ]
    },
    {
     "label": "Ordovician, Everton Formation",
     "url": "442d133247b5285108ce7f501507fcd7",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UMRHAMAxD0d+cgAVOWZSamZSJ08uY2drqD+ANGqT3ZjKYOEpCG7sWj8NbA4Q5NVhOdeKswXoyGEcN/mPDJPbTWkriA+q0CxejH48lAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Oe"
     ]
    },
    {
     "label": "Ordovician, St. Peter & Everton",
     "url": "442d133247b5285108ce7f501507fcd7",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UMRHAMAxD0d+cgAVOWZSamZSJ08uY2drqD+ANGqT3ZjKYOEpCG7sWj8NbA4Q5NVhOdeKswXoyGEcN/mPDJPbTWkriA+q0CxejH48lAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Ospe"
     ]
    },
    {
     "label": "Ordovician, Cotter Dolomite",
     "url": "b2a6e0bb86eca2bef94ffc6b7ee25b66",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UMREAIAxD0dCLMJwhCQt4wE/hOjI3G/0C3pAhPHt2h3cIMthiYA1tKECHgxDHAtMxT7wVmI8C46nALzY02IqnVRTWBb1wDk81183/AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Oc"
     ]
    },
    {
     "label": "Ordovician, Cotter & Jefferson City",
     "url": "ccc4bdc0f8a267a297f65be99fe72a5f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UoRHAMAxDUVunwbJZYcdqJlN7hsEWq/8ADwiI73MvSSsMAdgsLDMvBygpGOY4YDv2ibMB+9FgHA34iw0B7HpaR2V9gG4SEgccX9cAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Ocj"
     ]
    },
    {
     "label": "Ordovician, Jefferson City Dolomite",
     "url": "ccc4bdc0f8a267a297f65be99fe72a5f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UoRHAMAxDUVunwbJZYcdqJlN7hsEWq/8ADwiI73MvSSsMAdgsLDMvBygpGOY4YDv2ibMB+9FgHA34iw0B7HpaR2V9gG4SEgccX9cAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Ojc"
     ]
    },
    {
     "label": "Ordovician, \\\"Rockaway\\\" Mbr",
     "url": "d7aa4b33acb7d9c1c529855b568b36a5",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UsQ3AIBBD0Q/yYAwWKSNlBfbJDghdSX3uuD/AK1xY//eMBQNDHaYCa/A6wAUIcyownfLEWYH5ZDCOCrxiww4zntZRWBve/gnl4GPOVgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Ojcr"
     ]
    },
    {
     "label": "Ordovician, \\\"lower\\\" Jefferson City",
     "url": "ccc4bdc0f8a267a297f65be99fe72a5f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UoRHAMAxDUVunwbJZYcdqJlN7hsEWq/8ADwiI73MvSSsMAdgsLDMvBygpGOY4YDv2ibMB+9FgHA34iw0B7HpaR2V9gG4SEgccX9cAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Ojcl"
     ]
    },
    {
     "label": "Ordovician, Roubidoux Formation",
     "url": "5c11ef7c1520c9ec9e338f5360d8623f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASUlEQVQ4je3UsREAIAhD0eBlMDdzLFsmE4/SmnTyB3hFijD2ngeYEDQAZ2JmthTgiQAhjg2WY514a7AeBcZTg19sOADPp1WU1gUDkQ46QrnAYgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Or"
     ]
    },
    {
     "label": "Ordovician, Gasconade Dolomite",
     "url": "309636c3cfc63cff8524103f856cff2c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UMREAIAxD0dCLMJwhixUXuClcR+Zmo1/AGzKEZ8/uhg5B5lgMrKENBeh2QIhjgemYJ94KzEeB8VTgFxuaY8XTKgrrAj3RD13afGDgAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Og"
     ]
    },
    {
     "label": "Ordovician, \\\"upper\\\" Gasconade",
     "url": "06449a665271f36a95f5e8b1cb74c1cb",
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     "label": "Precambrian Eonothem",
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     "label": "Mesoproterozoic, Rhyolite of Russell Mountain",
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     "groupId": "0",
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     "label": "Devonian, Louisiana Limestone",
     "url": "5e5b2618e37a884da97d45ec1e49d9ad",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASElEQVQ4je3UMREAIAxD0dCLMJwhjbrBBXCwMTcb/QLekCFcfVRMVCgyOC9WSpOAc4EQxwTDMU68JRiPAuMpwT82NPh5WkkG32EKDHNkNItYAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Dl"
     ]
    },
    {
     "label": "Devonian, Saverton and Grassy Creek formations",
     "url": "a92851ee6d027d298935bee13e412a65",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASUlEQVQ4je3UMREAIAxD0dCLMJwhCgNVVriOzM1Gv4A3ZAj3PjMCE4LM4ExsDCwFGAEQ4thgOdaJtwbrUWA8NfjFhmbwfFpFaV0P2w4zLGikrAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Dlsgc"
     ]
    },
    {
     "label": "Cretaceous, McNairy Formation",
     "url": "b900ff6808dbf8f7cb24db0019f29a83",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UsQ3AIBBD0S/kwW6cbAGjMRmJkNJQnzvuD/AKF9bzjlgQGGow9WPdAS5AmFOB6ZQnzgrMJ4NxVOAVGzaY+2kdbesDr1wJtfVPoogAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Km"
     ]
    },
    {
     "label": "Cretaceous, Owl Creek and McNairy formations",
     "url": "b900ff6808dbf8f7cb24db0019f29a83",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UsQ3AIBBD0S/kwW6cbAGjMRmJkNJQnzvuD/AKF9bzjlgQGGow9WPdAS5AmFOB6ZQnzgrMJ4NxVOAVGzaY+2kdbesDr1wJtfVPoogAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Kom"
     ]
    },
    {
     "label": "water",
     "url": "4f456045578a1605b203c5609799780f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASUlEQVQ4jWNhiH3WwvCfwYGBGoCR4QAL1DBrqhj4n4GBhYHKgGXUQIoBC+VGoIJRAykHLFQwAwWMGjgywpCR4QCopKUKYGQ4AADAVwkS5M9HpAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Lake"
     ]
    },
    {
     "label": "Mississippian Subsystem",
     "url": "926ed55a99c90514ec464eb3a180f721",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARklEQVQ4jWM5XvPagYHhnwMDVQDTARaIYYz11DHwHwMLA5UBy6iBFAMWyo1ABaMGUg5YqGAGChg1cISEIdMBUElLHcB0AABuLAn9ZxTBCQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "M"
     ]
    },
    {
     "label": "Mississippian & Devonian",
     "url": "05345dfb2e673e2b80b1429dbd6ac84d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UMRVAIQxD0bQnwnD2xXwjeMFH4XRkbjb6BNwhQ7j+PQIxIMjhk4mZ2acAYwcIcWywHOvEXYP1KDCuGnxiQ4fPfFpFaR3WoxBSGT1YHgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "MD"
     ]
    },
    {
     "label": "Mississippian, Burlington Limestone",
     "url": "4ed527f7eb31b2304c64fb8560d239b3",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UsQ0AIAwDQRN5MDZjNSTGQgooJXXckR/gChfm2qc7vEOQwSYDa2hDATochDgWmI554q3AfBQYTwV+saHBZjytorAuODoOi4GzgfgAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mb"
     ]
    },
    {
     "label": "Mississippian, Burlington-Keokuk limestone",
     "url": "4ed527f7eb31b2304c64fb8560d239b3",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UsQ0AIAwDQRN5MDZjNSTGQgooJXXckR/gChfm2qc7vEOQwSYDa2hDATochDgWmI554q3AfBQYTwV+saHBZjytorAuODoOi4GzgfgAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mbk"
     ]
    },
    {
     "label": "Mississippian, Burlington-Keouk and Warsaw formations",
     "url": "16f2737be094ced28328734d5f798134",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UMREAIAxD0dCLMJwhDTzgp3AdmZuNfgFvyBDOfbo7OgSZYTGw1jAUoDtAiGOB6Zgn3grMR4HxVOAXG5phxdMqCusCJg4OXzBPl/cAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mbk-w"
     ]
    },
    {
     "label": "Mississippian, Compton Limestone",
     "url": "1a2883f434faf7b4229a855e41b0d719",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASElEQVQ4je3UMREAIAxD0dCLMJwhjKV+8FA4RuZmo1/AGzKEE6sD0SHJnBdraEPBbQQIcSwwHfPEW4H5KDCeCvxkQ/P7tJrMDxS5C3TWPKcMAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mc"
     ]
    },
    {
     "label": "Mississippian, Chouteau Group",
     "url": "8d0dc88027dc5624c984ede142708313",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4jWM5P/21AwPDPwcGqgCmAywgwxgZGOupYdx/hn8MLAxUBiyjBlIMWCg3AhWMGkg5YKGCGShg1MAREoZMB0AlLXUA0wEATc8MH6WskZ8AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mch"
     ]
    },
    {
     "label": "Mississippian, Chesterian Series",
     "url": "3291076c206314a118ee1bb022dc0ff1",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARklEQVQ4jWOZfvuzAwPDPwcGqgCmAywQwxjrqWPgPwYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4AgJQ6YDoJKWOoDpAADJoQo07XWT4gAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mcs"
     ]
    },
    {
     "label": "Mississippian, Elsey Formation",
     "url": "36f13687dc706a32f6b8b827d57752d9",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASUlEQVQ4je3UMREAIAxD0dCLMJwhjXphxANwjMzNRr+AN2QI+5gVWBWSzHmxgtIU3MYCIY4JhmOceEswHgXGU4KfbGh+n1aT+QHJBgxb+yLTsAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Me"
     ]
    },
    {
     "label": "Mississippian, Elsey & Reeds Spring Formations",
     "url": "0a31140701ef785df28edd80f9ebe41e",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASElEQVQ4jWOZfvu1AwPDPwcGqgCmAyxgwxgZ66li3v9/DCwMVAYsowZSDFgoNwIVjBpIOWChghkoYNTAERKGTAdAJS11ANMBAJdwDCt3KFrKAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mers"
     ]
    },
    {
     "label": "Mississippian, Fern Glen Formation",
     "url": "a27a0f31531ea74a08857ab5966cb33f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAR0lEQVQ4je3UMREAIAxD0dCLMJxhrR7wUzjYmJuNfgFvyBBirg5EhyRzXqy1IfFWgBDHAtMxT7wVmI8C46nATzY0P0+ryXwDKBILoFITvWQAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mfg"
     ]
    },
    {
     "label": "Mississippian, Fern Glen Fm, Kinderhookian Series and Devonian System",
     "url": "a64a03a6a425358b1c77ed57437825f1",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATUlEQVQ4je3UMRHAMBADwbNHwMwsoELAfaCEg5P50vWr8x+ALVRI9/OOBQNDHaYCa43LAa4PhDkVmE55Yq/AfDIYWwUesWGHGU/rKKwf62IMN4z0w50AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "MfgkD"
     ]
    },
    {
     "label": "Mississippian, Grand Falls Chert",
     "url": "834c4c6d9ce501e1232bec5c48057e88",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UsRHAMAxCUaxjqJTeLKtpj+yCcy5di876A7yCAj7fmghNOFIkN7YwXoc3QiDMscFyrBNnDdajwThq8I4NFbmf1pIifys3DeQDLfSSAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mgf"
     ]
    },
    {
     "label": "Mississippian, Hannibal Shale",
     "url": "61eafbb8d6652c15603703cbb05a59df",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UMRHAMAxDUUcnYAFTHoVW8ykHpZcxs7XVH8AbNIjP9c6AZjgSkhsba9wOb0HBMMcGy7FOnDVYjwbjqMF/bCjkflpLQn4N3w/d+sDxOwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mh"
     ]
    },
    {
     "label": "Mississippian, Kinderhookian Series",
     "url": "05345dfb2e673e2b80b1429dbd6ac84d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UMRVAIQxD0bQnwnD2xXwjeMFH4XRkbjb6BNwhQ7j+PQIxIMjhk4mZ2acAYwcIcWywHOvEXYP1KDCuGnxiQ4fPfFpFaR3WoxBSGT1YHgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mk"
     ]
    },
    {
     "label": "Devonian & Mississippian, Kinderhookain Series",
     "url": "05345dfb2e673e2b80b1429dbd6ac84d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UMRVAIQxD0bQnwnD2xXwjeMFH4XRkbjb6BNwhQ7j+PQIxIMjhk4mZ2acAYwcIcWywHOvEXYP1KDCuGnxiQ4fPfFpFaR3WoxBSGT1YHgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "MkD"
     ]
    },
    {
     "label": "Mississippian, Keokuk Limestone",
     "url": "6651ad2b2c2f43d81c70ce380d83318a",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UsRHAMAxCUcwxmDfLMFlEW6XDOZeupc76A7yCAr3fmqAnKjJDGxsYT4W3aAjFqcF0yhNnDeZTgXHU4B0bmrGftiQzfoUFD2kZuhUPAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mke"
     ]
    },
    {
     "label": "Mississippian, Northview Shale",
     "url": "77b70f5486b81383fe8aa1959c53396d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWM5n/LagYHpnwMDNcA/pgMsIMMY/zPWU8O8/0z/GFgYqAxYRg2kGLBQbgQqGDWQcsBCBTNQwKiBIyMM/zEdAJW0VAH/mA4AAHMPD+1dHwD0AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mn"
     ]
    },
    {
     "label": "Mississippian, Osagean Series",
     "url": "4ed527f7eb31b2304c64fb8560d239b3",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UsQ0AIAwDQRN5MDZjNSTGQgooJXXckR/gChfm2qc7vEOQwSYDa2hDATochDgWmI554q3AfBQYTwV+saHBZjytorAuODoOi4GzgfgAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mo"
     ]
    },
    {
     "label": "Mississippian, Pierson Limestone",
     "url": "7b1fc6d858f2ae441b71a242a96e4c7b",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UsQ0AIQxD0cTyYGzGapGuuK0CoqSOO/IHeIUL8//WsMxhioDgwdx9KryVaTRxbLAc68Rdg/UoMK4afGNDIM7TSgJiA+3PEFaslKdpAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mp"
     ]
    },
    {
     "label": "Mississippian, Kinderhookian Series & Pierson Limestone",
     "url": "7b1fc6d858f2ae441b71a242a96e4c7b",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UsQ0AIQxD0cTyYGzGapGuuK0CoqSOO/IHeIUL8//WsMxhioDgwdx9KryVaTRxbLAc68Rdg/UoMK4afGNDIM7TSgJiA+3PEFaslKdpAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mpk"
     ]
    },
    {
     "label": "Mississippian, Salem Formation",
     "url": "272ef61e2bbb9edef21100c03506731d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UMRHAMAxDUUcnYGFWGKUTDuWj5Dxmtrb6A3iDBvH99hQ0wxCExcRGjMcBCgqGOTZYjnXirsF6NBhXDf5iQwgrn9ZRWgeVUBE520HNrAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Ms"
     ]
    },
    {
     "label": "Mississippian, Ste. Genevieve Limestone",
     "url": "c7a6770874bfe142a5cece1cd078a3a1",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UMRHAMAxDUVsnYGFWaDWTAigHJ5cxs7XFH8AbNIjv9w/LHKYICG7M3R+FNzONJo4NlmOdOGuwHgXGUYN3bAjEflpJQCzt2xBW4I89VQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Msg"
     ]
    },
    {
     "label": "Mississippian, St. Louis Limestone",
     "url": "e242e67a09f8d18e0549fc0b5b28cfac",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UMREAIAxD0dCLMJwhjAUv+CgcbMzNRr+AN2QI+1zV4BWCHDZ4sVKaArTlIMQxwXCME28JxqPAeErwiw0dNs7TKjrWBp9oD20kQrZXAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Msl"
     ]
    },
    {
     "label": "Mississippian, St. Louis and Ste. Genevieve Limestones",
     "url": "e242e67a09f8d18e0549fc0b5b28cfac",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UMREAIAxD0dCLMJwhjAUv+CgcbMzNRr+AN2QI+1zV4BWCHDZ4sVKaArTlIMQxwXCME28JxqPAeErwiw0dNs7TKjrWBp9oD20kQrZXAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mslsg"
     ]
    },
    {
     "label": "Mississippian, Salem & Warsaw formations",
     "url": "63fa5d2f33272bdb1b3837bf7de08a31",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UsQ0AIAwDQRN5MEZiA1ZDYq+AoKOOO/IDXOHCbHNVh1cIMtjgxUrpCtCXgxDHBMMxTrwlGI8C4ynBLzY02DhPq+hYG8N+D/4OeZyvAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Msw"
     ]
    },
    {
     "label": "Mississippian, Warsaw Formation",
     "url": "63fa5d2f33272bdb1b3837bf7de08a31",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UsQ0AIAwDQRN5MEZiA1ZDYq+AoKOOO/IDXOHCbHNVh1cIMtjgxUrpCtCXgxDHBMMxTrwlGI8C4ynBLzY02DhPq+hYG8N+D/4OeZyvAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Mw"
     ]
    },
    {
     "label": "Ordovician System",
     "url": "7e24b9d6b08ac3ca99848d9f5fe856fe",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UMREAIAxD0dCLMJxhrR4QgBPgYGNuNvoFvCFDuEavmKhQZHBerJQmAecCIY4JhmOceEswHgXGU4J/bGjw87SSDL4BrPYMf2OECMEAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "O"
     ]
    },
    {
     "label": "Ordovician, Cotter Dolomite",
     "url": "b2a6e0bb86eca2bef94ffc6b7ee25b66",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UMREAIAxD0dCLMJwhCQt4wE/hOjI3G/0C3pAhPHt2h3cIMthiYA1tKECHgxDHAtMxT7wVmI8C46nALzY02IqnVRTWBb1wDk81183/AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Oc"
     ]
    },
    {
     "label": "Ordovician, Cotter & Jefferson City dolomites",
     "url": "ccc4bdc0f8a267a297f65be99fe72a5f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UoRHAMAxDUVunwbJZYcdqJlN7hsEWq/8ADwiI73MvSSsMAdgsLDMvBygpGOY4YDv2ibMB+9FgHA34iw0B7HpaR2V9gG4SEgccX9cAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Ocj"
     ]
    },
    {
     "label": "Ordovician, Decorah Group",
     "url": "4573dd514c077331661c065fec82dcb4",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UsRGAQAwDwcOjwr4ziqChr8wwDj+2MnwFbKBAeh9WBgtDkWwVdsHtADNAmNOA7dQnzgbsJ4NxNOAvNoxk19M6KusDDXAMY7N2gKkAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Od"
     ]
    },
    {
     "label": "Ordovician, Decorah & Plattin groups",
     "url": "7121392a707cf751067c1e521268d662",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4jWO5P9vCgYGByYGBKuDfARaQYYwM/+upYdx/BiYGFgYqA5ZRAykGLJQbgQpGDaQcsFDBDBQwauAICcN/B0AlLXXAvwMAiu4LgnkAF7QAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Odp"
     ]
    },
    {
     "label": "Ordovician, Dutchtown Formation",
     "url": "38930d771617074c35b5826ca15a1655",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAR0lEQVQ4jWP5ffq1AwMDAwhTAxxgARnGyMhYTw3T/v//zwAykKqAZdRAigEL5UagglEDKQcsVDADBYwaOFLC8ACopKUSOAAAcWoMfvASU4MAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Odu"
     ]
    },
    {
     "label": "Ordovician, Everton Formation",
     "url": "442d133247b5285108ce7f501507fcd7",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UMRHAMAxD0d+cgAVOWZSamZSJ08uY2drqD+ANGqT3ZjKYOEpCG7sWj8NbA4Q5NVhOdeKswXoyGEcN/mPDJPbTWkriA+q0CxejH48lAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Oe"
     ]
    },
    {
     "label": "Ordovician, Gasconade Dolomite",
     "url": "309636c3cfc63cff8524103f856cff2c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UMREAIAxD0dCLMJwhixUXuClcR+Zmo1/AGzKEZ8/uhg5B5lgMrKENBeh2QIhjgemYJ94KzEeB8VTgFxuaY8XTKgrrAj3RD13afGDgAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Og"
     ]
    },
    {
     "label": "Ordovician, Joachim Dolomite",
     "url": "e3df863bd63b5874b4b517cfd7f961c3",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWN5vbrC4R8TgwMDFQDTP4YDLCDDGBn+11PDwH9MjAwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhkz/GA6ASlpqAJBZABklDeCgzOcUAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Oj"
     ]
    },
    {
     "label": "Ordovician, Jefferson City Dolomite",
     "url": "ccc4bdc0f8a267a297f65be99fe72a5f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UoRHAMAxDUVunwbJZYcdqJlN7hsEWq/8ADwiI73MvSSsMAdgsLDMvBygpGOY4YDv2ibMB+9FgHA34iw0B7HpaR2V9gG4SEgccX9cAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Ojc"
     ]
    },
    {
     "label": "Ordovician, Kimmswick Limestone",
     "url": "888207ac2a497fe79c87ba9a9d31f9aa",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATUlEQVQ4je3UMRHAMBADwbNHwMwsMELHXcCEg5P50vWr8x+ALVRI73OPBQNDHaYCa43LAa4PhDkVmE55Yq/AfDIYWwUesWGHGU/rKKwfIa4MF5UuEMEAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Ok"
     ]
    },
    {
     "label": "Ordovician, Kimmswick, Decorah and Plattin",
     "url": "5eec91d0402cd88bac518e70194e209f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UsRHAIBADwYNRYXTmMtwO3bgLYD4kfmX+K2ADBdL3MhYMDHWYCqw1Hge4NghzKjCd8sRdgflkMK4K/MWGHWY8raOwDh7wC0xUVS4uAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Okdp"
     ]
    },
    {
     "label": "Ordovician, Maquoketa Group",
     "url": "32f4e847f2b0eefb7624a72272a56057",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UMREAIAxD0dCLMJwhBiO4wE3hOjI3G/0C3pAhPHt2N3QIMsdiYA1tKEC3A0IcC0zHPPFWYD4KjKcCv9jQHCueVlFYF79uD0kfGOnVAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Om"
     ]
    },
    {
     "label": "Ordovician, Maquoketa Group & Kimmswick Ls",
     "url": "93424f95d0c10559c1a039d8518a9b15",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4jWN5fny6AxMDgwMDFcA/BoYDLFDD6qlhIBMDAwMLA5UBy6iBFAMWyo1ABaMGUg5YqGAGChg1cESE4T8GhgOgkpYaAGQWADk5CRd5+iFhAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Omk"
     ]
    },
    {
     "label": "Ordovician, Thebes Sandstone",
     "url": "d7810b6888fe112f96298f5495e906d2",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASElEQVQ4jWN5fXq6AwMDkwMDVcC/AyxgwxgZ6qli3n8mBhYGKgOWUQMpBiyUG4EKRg2kHLBQwQwUMGrgCAnDfwdAJS11wL8DAGYgCx7fKK/dAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Omt"
     ]
    },
    {
     "label": "Ordovician, Plattin Group",
     "url": "7121392a707cf751067c1e521268d662",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4jWO5P9vCgYGByYGBKuDfARaQYYwM/+upYdx/BiYGFgYqA5ZRAykGLJQbgQpGDaQcsFDBDBQwauAICcN/B0AlLXXAvwMAiu4LgnkAF7QAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Op"
     ]
    },
    {
     "label": "Ordovician, Powell Dolomite",
     "url": "7b4b268afa9a47dffa1efdd99eb0d45d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4jWP5fDvDgYGByYGBKuDfARaQYYwM/+upYdx/BiYGFgYqA5ZRAykGLJQbgQpGDaQcsFDBDBQwauAICcN/B0AlLXXAvwMAzUcMBoYH2KYAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Opo"
     ]
    },
    {
     "label": "Ordovician, Roubidoux Formation",
     "url": "5c11ef7c1520c9ec9e338f5360d8623f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASUlEQVQ4je3UsREAIAhD0eBlMDdzLFsmE4/SmnTyB3hFijD2ngeYEDQAZ2JmthTgiQAhjg2WY514a7AeBcZTg19sOADPp1WU1gUDkQ46QrnAYgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Or"
     ]
    },
    {
     "label": "Ordovician, St. Peter Sandstone",
     "url": "38cfda11fde4539b2ce44e817e2915ab",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4jWO5PzvBgYGByYGBKuDfARaQYYyM/+upYdz//0wMLAxUBiyjBlIMWCg3AhWMGkg5YKGCGShg1MAREob/DoBKWuqAfwcAh/wNqejFXvoAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Osp"
     ]
    },
    {
     "label": "Pennsylvanian Subsystem",
     "url": "2ded75e32091c2ebb9ffe1c3fc15fc30",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UsQ0AIAwDQRN5MDZjGBZhD0ZBilBK6rgjP8AVLsx9ZndYhyCDLwbWgKEAHQZCHAtMxzzxVmA+CoynAr/Y0OArnlZRWBe98A1KaYPDCwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "P"
     ]
    },
    {
     "label": "Pennsylvanian, Atokan Stage",
     "url": "3cfb61a41b14a88e3318a1c3b62e1de8",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARElEQVQ4jWNhKPFxYGBgAGFqgAMsYMP+M9RTxThGBgaQgVQFLKMGUgxYKDcCFYwaSDlgoYIZKGDUwJEShgdAJS2VwAEAJ4AFkbhPba4AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pat"
     ]
    },
    {
     "label": "Pennsylvanian, Bronson Subgroup",
     "url": "1a7ef13d2049393837feae74922d3c0f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4jWMpaXdx+MfE4MBABcD0j+EAC9SwemoY+I+JgYGFgcqAZdRAigEL5UagglEDKQcsVDADBYwaOCLCkOkfwwFQSUsNADILAPngDA+FCBWPAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pb"
     ]
    },
    {
     "label": "Pennsylvanian, basal facies",
     "url": "2ded75e32091c2ebb9ffe1c3fc15fc30",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UsQ0AIAwDQRN5MDZjGBZhD0ZBilBK6rgjP8AVLsx9ZndYhyCDLwbWgKEAHQZCHAtMxzzxVmA+CoynAr/Y0OArnlZRWBe98A1KaYPDCwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pbf"
     ]
    },
    {
     "label": "Pennsylvanian, Cherokee Group, Cabaniss Subgroup",
     "url": "08c44267ce577c3b0da06a8610a34f7d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4jWMx+Xzc4R8TgwMDFQDTP4YDLFDD6qlh4D8mBgYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIQ6Z/DAdAJS01AMgsAEt2DL7LL2xNAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pc"
     ]
    },
    {
     "label": "Pennsylvanian, Cherokee Group",
     "url": "3c8d06300944e2aa2ad94bbbc34af7ab",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4jWMR+X/ZgeHfPwcGagAmpgMsYMMYGeupYuC/fwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwJERhkxMB0AlLVUAE9MBAOSADbQgG4BiAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pch"
     ]
    },
    {
     "label": "Pennsylvanian, Bluejacket Formation",
     "url": "4d5aeffadb6e54fb460e5d12d2cb6237",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UMREAIAxD0dCLMJwhDdzgonAcE3Oz0S/gDRnCuXo1eIUghw1erDQFaHAQ4phgOMaJtwTjUWA8JfjFhg4b52kVHWsD0g0Nduxc/4kAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pchkbj"
     ]
    },
    {
     "label": "Pennsylvanian, Drywood and rowe formations",
     "url": "9a8429693b12e46ea996a6ad5d8b6772",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UsRHAIBADwTOjwiiK3K3RgTsChnFE/Mr4K2ADBdI3Wy1QMTSg68fm6wALD8KcEgynOHGWYDwZjKMEr9hwQN9P62hbCyKqChUu7Yx4AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pchkdr"
     ]
    },
    {
     "label": "Pennsylvanian, lower Cherokee Group",
     "url": "f16d1441b3489da0f6dc3772f679d509",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASUlEQVQ4je3UMRHAMAxD0d+cgIVZAZWEkSU9j5mtLf4A3qBB+jZzwcTQgFBiD7wOcAHCnBospzpx1mA9GYyjBq/YcEDk0zpK6wc0hAl578cPFwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pchl"
     ]
    },
    {
     "label": "Pennsylvanian, lower Cabaniss Subgroup",
     "url": "0c7eafd47ca7152491d55d2844188366",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASElEQVQ4je3UMREAIAxD0bQXYTjDWp0w4gI4RuZmo1/AGzKEc48GrAZJHryYwbqC21ggxLHAdMwTbwXmo8B4KvCTDT3u02ryOCtIDJMX653cAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pcl"
     ]
    },
    {
     "label": "Pennsylvanian, middle Cabaniss Subgroup",
     "url": "9cc78aedcab7806e216e8b83b3606681",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAR0lEQVQ4je3UsQ0AIAwDwRfyYAzBPqzGZIBSUscd+QGucGGNQ2/QMbRhKbAD0wE2QJhTgemUJ94KzCeD8VTgFxtuWPG0jsK6N7sJJLFVU5UAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pcm"
     ]
    },
    {
     "label": "Pennsylvanian channel sandstones",
     "url": "8f000f7730ec6e7cf25a2a94d4182794",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UsRHAIBADwTOjwujMRbggyOkJe3BG/Mr4K2ADBdIzWi1QMTSh68cubgdYXhDmlGA4xYm9BOPJYGwleMSGE/p6WkfL+gA8NQruAbGdBAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pcs"
     ]
    },
    {
     "label": "Pennsylvanian, upper Cabaniss Subgroup",
     "url": "0980e785a8ad9c0497495277a3e9b4e3",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UsRHAIAxDUUenwdgso0HHCNlGl4OO2urwH+AVKsT59QahhSFBgxt74nWAEIJhjgWmY544KzAfDcZRgVdsKGisp3W0rB98ExAwxAoEdAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pcu"
     ]
    },
    {
     "label": "Pennsylvanian, Douglass Group",
     "url": "65a1abd71fe6ecd6db25b3e392f327aa",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4jWM5/Hi+AxMTgwMDFcC/fwwHWCCGMdZTw0Ampv8MLAxUBiyjBlIMWCg3AhWMGkg5YKGCGShg1MAREYb//jEcAJW01AAgswCnrQ4YVAeXnAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pd"
     ]
    },
    {
     "label": "Pennsylvanian, Iatan Limestone",
     "url": "9cc78aedcab7806e216e8b83b3606681",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAR0lEQVQ4je3UsQ0AIAwDwRfyYAzBPqzGZIBSUscd+QGucGGNQ2/QMbRhKbAD0wE2QJhTgemUJ94KzCeD8VTgFxtuWPG0jsK6N7sJJLFVU5UAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pdoi"
     ]
    },
    {
     "label": "Pennsylvanian, Lawrence Shale",
     "url": "e489d8e65871d09ff4aaf400af7d5008",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASUlEQVQ4je3UMQ0AIBBD0R9SYThDBnbwgwdCSFiYrxv3BbyhQ9XnrAUqhhYMXaw5wAIIc0ownOLEW4LxZDCeEvxiwwXjPK2jY201dAk/k0qNaQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pdol"
     ]
    },
    {
     "label": "Pennsylvanian, Weston Shale",
     "url": "9a8429693b12e46ea996a6ad5d8b6772",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UsRHAIBADwTOjwiiK3K3RgTsChnFE/Mr4K2ADBdI3Wy1QMTSg68fm6wALD8KcEgynOHGWYDwZjKMEr9hwQN9P62hbCyKqChUu7Yx4AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pdow"
     ]
    },
    {
     "label": "Pennsylvanian, Fort Scott Subgroup of Marmaton Group",
     "url": "dae0fa151bc4605802e2aac391a984c8",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UMREAIRBD0Q8TYTg7UWcAP3hgmC2pNx37BbwiRfSvNTYMDHWYCqzB5wA3IMypwHTKE3cF5pPBuCrwiQ07zHhaR2EdtVoKWGWih/IAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pfs"
     ]
    },
    {
     "label": "Pennsylvanian, Krebs Subgroup",
     "url": "4d5aeffadb6e54fb460e5d12d2cb6237",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UMREAIAxD0dCLMJwhDdzgonAcE3Oz0S/gDRnCuXo1eIUghw1erDQFaHAQ4phgOMaJtwTjUWA8JfjFhg4b52kVHWsD0g0Nduxc/4kAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pk"
     ]
    },
    {
     "label": "Pennsylvanian, Kansas City",
     "url": "ed74f9904ce9b77099acbeeb7b6f7b35",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARklEQVQ4jWO5/H+/AwPDPwcGqgCmAywQwxjrqWPgPwYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4AgJQ6YDoJKWOoDpAADgOApg48pQWgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pkc"
     ]
    },
    {
     "label": "Pennsylvanian, Dennis Formation",
     "url": "49217580abfe5ab287634fc81ca1a5d7",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWM5/Pu2wz8GJgcGKgAmhn8HWECGMTIy1FPDwH//mRhYGKgMWEYNpBiwUG4EKhg1kHLAQgUzUMCogSMiDJkY/h0AlbTUACCzAIhGD2mL67LzAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pkcbd"
     ]
    },
    {
     "label": "Pennsylvanian, Hertha and Elm Branch formations",
     "url": "efa54d3fd82ba906a1e1e736c6bdb092",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UMREAIAxD0dCLMJwhCQs4wkHhOjI3G/0C3pAhnHt2N3QIMsdiYA1tKEC3A0IcC0zHPPFWYD4KjKcCv9jQHCueVlFYF6jrDx2lZEHgAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pkcbhl"
     ]
    },
    {
     "label": "Pennsylvanian, Brosnan subgroup, lower part",
     "url": "7126db1be9e102ee2b78716b785a7223",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATUlEQVQ4je3UMQ3AMBBD0Z/IwMKs1MIgEAqkUlrdmPm89T6AN3iw7meNDQNDHaYCa43LAe4XhDkVmE554qzAfDIYRwX+YsMOM57WUVgfgEgMd/oakf4AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pkcbl"
     ]
    },
    {
     "label": "Pennsylvanian, Galesburg and Swope formations",
     "url": "ed23b0ba107a99875a871d5e8274c1cf",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATUlEQVQ4je3UMQ3AMBBD0Z/IwMKs1MIgAAqlUlrdmPm89T6AN3iw7meNDQNDHaYCa43LAe4XhDkVmE554qzAfDIYRwX+YsMOM57WUVgfZvwMc6b34q4AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pkcbsg"
     ]
    },
    {
     "label": "Pennsylvanian, Brosnan Subgroup, upper part",
     "url": "573fae6313322c7f7d43d4ea43e0161a",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARUlEQVQ4jWPZ/nuzAwMDAwhTAxxgARvGyFBPFeP+MzCADKQqYBk1kGLAQrkRqGDUQMoBCxXMQAGjBo6UMDwAKmmpBA4AAJA6CDSOcOGaAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pkcbu"
     ]
    },
    {
     "label": "Pennsylvanian, Linn Subgroup",
     "url": "36cf235060f0d18dd300d118dda8f10b",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UMREAIAxD0bQXYYhiRxQGqgw4RuZmo1/AGzKEffaGhQZFjuDFtu2h8GwZCHEsMB3zxFuB+Sgwngr8Y0NH3KeV5IgDy7cLbFcCdW8AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pkcl"
     ]
    },
    {
     "label": "Pennsylvanian, Lansing & Pedee",
     "url": "9654047c342fb7b8ec0bfc82a2e4752d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4jWNZ/n+3A8M/JgcGagCmfwdYwIYxMtRTxcB/TAwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwJERhkz/DoBKWqoApn8HACH1DTKUjzmgAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pl"
     ]
    },
    {
     "label": "Pennsylvanian, Marmaton Group",
     "url": "4232b9579ce93fe765199a010f57d289",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATUlEQVQ4je3UMRHAMAxDUcUnYGFWKIVQCuYSHmovY2Zrqz+AN2gQ7/VMREw4kpIbG8Dl8N4IEObYYDnWibMG69FgHDX4jw2l3E9rScoPJwsOBK6jGwEAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pm"
     ]
    },
    {
     "label": "Pennsylvanian, Altamont Formation",
     "url": "7cb5fd3c25bcb83bf50636b822886fd0",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4jWPJOL3a4R8TgwMDFQDTP4YDLFDD6qlh4D8mBgYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIQ6Z/DAdAJS01AMgsAOaXDK4SXOIKAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pmaa"
     ]
    },
    {
     "label": "Pennsylvanian, Bandera Shale",
     "url": "956fedf2128cbbe4c29870c20d796bec",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UsRHAIBADwYNRYXTm0kw37gI8HxK/Mv4K2ECB9O5vLBgY6jAVWKM9DnCxEeZUYDrlibMC88lgHBV4xYYdZjyto7B+ZMkMc6PWMAoAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pmab"
     ]
    },
    {
     "label": "Pennsylvanian, Labette Shale",
     "url": "754b2a4b5aaa6295624bbbfc04bf9de9",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQ0lEQVQ4jWO5/v+3AwMDAwhTAxxggRjGWE8d8/4zgAykKmAZNZBiwEK5Eahg1EDKAQsVzEABowaOlDA8ACppqQQOAAA42Aigkha54QAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pmal"
     ]
    },
    {
     "label": "Pennsylvanian, Pawnee Formation",
     "url": "46745488acccd94216c7d44a671fcad2",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASElEQVQ4jWPZ/Hu7AwPDPwcGqgCmAyxgwxgZ66li3v9/DCwMVAYsowZSDFgoNwIVjBpIOWChghkoYNTAERKGTAdAJS11ANMBAMpQDDOZ1KvUAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Pennsylvanian, Holdenville, Lenapah and Nowata formations",
     "url": "b68b6dba37f59abca0176164bcaa3e33",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATUlEQVQ4jWO5/nu3AxMDkwMDFcA/hn8HWMCGMTLUU8NApv9MDCwMVAYsowZSDFgoNwIVjBpIOWChghkoYNTAERGG/xj+HQCVtNQAILMAbdAOYDRajE8AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pmhln"
     ]
    },
    {
     "label": "Pennsylvanian, Warrensburg Channel Sandstone",
     "url": "36cf235060f0d18dd300d118dda8f10b",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UMREAIAxD0bQXYYhiRxQGqgw4RuZmo1/AGzKEffaGhQZFjuDFtu2h8GwZCHEsMB3zxFuB+Sgwngr8Y0NH3KeV5IgDy7cLbFcCdW8AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pmw"
     ]
    },
    {
     "label": "Pennsylvanian, Pleasanton Group",
     "url": "6c8eb6eaf1911fd7cf00ed8e8cd04d7f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARElEQVQ4jWPZfFrDgYGBAYSpAQ6wgA1jZKininH/GRhABlIVsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dKGB4AlbRUAgcA2UgHdSYtU5sAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pp"
     ]
    },
    {
     "label": "Pennsylvanian, Pleastanton, Warrensburg",
     "url": "f7a92441a4a587facdedeca28c54ffce",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARklEQVQ4jWNpX27hwMDA5MBAFfDvAAvEsP/11DGQiYGFgcqAZdRAigEL5UagglEDKQcsVDADBYwaOELC8N8BUElLHfDvAACnygk3l5tMkAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Ppwm"
     ]
    },
    {
     "label": "Pennsylvanian, Rowe Formation",
     "url": "906bfb13e815f239204a4a3295c85383",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQ0lEQVQ4jWOxWM7gwMAAxtQAB1jAhjEy1FPFuP8MDCADqQpYRg2kGLBQbgQqGDWQcsBCBTNQwKiBIyUMD4BKWiqBAwDu7AauPcRzwwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pr"
     ]
    },
    {
     "label": "Pennsylvanian, Lecompton and Kanwaka formations",
     "url": "2571079c34da0d3974c21fe2a2d1ea8b",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UsQ0AIAwDQQd5MDZjNNiKAglQSuq4Iz/AFS7MuXrdQIWgAgw6ZmZNAe5zQIhjguEYJ94SjEeB8ZTgFxsWYPjTKnLrArFYDn6qzVXrAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pslk"
     ]
    },
    {
     "label": "Pennsylvanian, Oread Formation",
     "url": "e4dbaef7f52543312c596a94af627d5c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UMREAIAxD0dCLMJwhAzu4wE3hOCbmZqNfwBsyhH3NavAKQQ4bvFhpCtDgIMQxwXCME28JxqPAeErwiw0dNs7TKjrWBm+mDT4orrfzAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pso"
     ]
    },
    {
     "label": "Pennsylvanina unnamed sandstone",
     "url": "2ded75e32091c2ebb9ffe1c3fc15fc30",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UsQ0AIAwDQRN5MDZjGBZhD0ZBilBK6rgjP8AVLsx9ZndYhyCDLwbWgKEAHQZCHAtMxzzxVmA+CoynAr/Y0OArnlZRWBe98A1KaYPDCwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pss"
     ]
    },
    {
     "label": "Pennsylvanian, undifferentiated",
     "url": "2be44ef0041d240a515890581f722fbe",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARUlEQVQ4jWOZv7zZgYGByYGBKuDfARaoYfXUMZCJgYWByoBl1ECKAQvlRqCCUQMpByxUMAMFjBo4QsLw3wFQSUsd8O8AACMcCJsxy9NYAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pu"
     ]
    },
    {
     "label": "Pennsylvanian, Warner Formation",
     "url": "3c33deb5325a8211d209628f4d8a8616",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARklEQVQ4jWNZvpzBgYEBjKkBDrCADGNkZKinhmn//zMwgAykKmAZNZBiwEK5Eahg1EDKAQsVzEABowaOlDA8ACppqQQOAACvbAkcDl/u5wAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pwar"
     ]
    },
    {
     "label": "Pennsylvanian, Zarah Subgroup",
     "url": "3974941b40273eed434c34505f77df26",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4jWNpP53hwMT0z4GBCuDfP6YDLFDD6qlhIBPTPwYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIw3//mA6ASlpqAJBZAG6/D4xhWISiAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Pz"
     ]
    },
    {
     "label": "Quatermay/Tertiary Mounds Gravel",
     "url": "f121cdb912d76710add029f677c24a58",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASUlEQVQ4je3UMREAMAhD0cBFWJ3VWt3UBddjZCZb+QLekCG8FysCC4LccZiYGbYCjAAIcRywHftEbcB+FBilAb/Y0B0nn1ZRWg9WdA2cKPkdEAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "QTm"
     ]
    },
    {
     "label": "Quaternary alluvium",
     "url": "ce6cf2f4aa11c55318617095780caa22",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARUlEQVQ4je3UsQ0AIAwDQRN5MDZjNDJZQIiKOu7ID3CFC3Ot2YHokGTOi7WhAQOEOBaYjnnircB8FBhPBX6yofl5Wk3mG/aLCozmiEUkAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Qal"
     ]
    },
    {
     "label": "Quaternary glacial drift",
     "url": "911c6c17f2e22fb20baeccde55f99f9a",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPklEQVQ4jWP5/3q9AwMDAwhTAxxggRpWTyUDGUAGUhWwjBpIMWCh3AhUMGog5YCFCmaggFEDR0oYHqCieQcA2OYGac03hh8AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Quaternary, fluvial/lacustrial",
     "url": "ce6cf2f4aa11c55318617095780caa22",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARUlEQVQ4je3UsQ0AIAwDQRN5MDZjNDJZQIiKOu7ID3CFC3Ot2YHokGTOi7WhAQOEOBaYjnnircB8FBhPBX6yofl5Wk3mG/aLCozmiEUkAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Quaternary gravels, undifferentiated",
     "url": "a9a7ecd0d62fc4039f656a028c281ebb",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARklEQVQ4jWP5//++AwPDPwcGqgCmAywQwxjrqWPgPwYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4AgJQ6YDoJKWOoDpAADAugqsRajYuAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Quaternary loess",
     "url": "1df6421e9e34eda51266a692bdf87d45",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQklEQVQ4jWP5/7/EgYGBAYSpAQ6wQAz7X08d8xgZQAZSFbCMGkgxYKHcCFQwaiDlgIUKZqCAUQNHShgeAJW0VAIHAN7wB0McsqMGAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Quaternary terrace",
     "url": "420a7a5251ef8846b887d1260faa94a9",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UsQ3AIBBD0YvlwRgsEqvRM056K4KO+txxf4BXuDC/+TZILQwJGNzYE90BQgqGORaYjnnirMB8NBhHBV6xoYCxntbRsn5mGREJs9AiKwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "residual Osagean Series chert",
     "url": "d5836fae4be2b2bdb7b4f716a4a1701a",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATUlEQVQ4jWPZ/fu9AxPDPwcGKoB/DEwHWMCGMTLWU8NApv//GFgYqAxYRg2kGLBQbgQqGDWQcsBCBTNQwKiBIyIM/zEwHQCVtNQAILMA0ggPdT20MRYAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "undifferentiated residuum",
     "url": "f4bcbff50834c0db2ca60d9a835f89f4",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARUlEQVQ4jWP5/zrDgYHhnwMDVQDTARaoYfXUMfAfAwsDlQHLqIEUAxbKjUAFowZSDlioYAYKGDVwhIQh0wFQSUsdwHQAAEyCCiBSC9ZjAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Silurian and Devonian, Edgewood Group",
     "url": "b3bf36eb65d4c78365824faa8085c9a6",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UMREAIAxD0dCLMJwhAyEYwA8eelxH5majX8AbMoRrnu6GDkHm2AysAUMBugGEOBaYjnnircB8FBhPBX6xoTl2PK2isC4Sqw0GvZPG0AAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Silurian, Sexton Creek Limestone",
     "url": "26c0565881584533d086646f198c23e5",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASUlEQVQ4je3UMREAIAxD0ZSLMJwhBiNVRrmOzM1Gv4A3ZAhj73mACUEDcCZmZksBnggQ4thgOdaJtwbrUWA8NfjFhgPwfFpFaV0Gxg4SaZEXSAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Tertiary to Quaternary terrace gravels",
     "url": "3e532d9326d1a101fe874f00cfbe5cfc",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASElEQVQ4je3UsRGAMAxD0R+fBstmDMUCnizkoEttdfgP8AoV0nMzWUwcBakPG1wWcIEwpwbLqU6cNVhPBuOowX9sGOT7tJaC3GNpCYGxSRudAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Tertiary, Midway Group",
     "url": "67c5c4c321c6d389e5b966e19f9a11f9",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UsRHAIBADwYNRYXRm9+QGqAwzHxK/Mv4K2ECB9P3vWDAw1GEqsAaPA1yAMKcC0ylPnBWYTwbjqMArNuww42kdhbUBj8kKAaw0SUgAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Tertiary, Porters Creek and Clayton formations",
     "url": "67c5c4c321c6d389e5b966e19f9a11f9",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4je3UsRHAIBADwYNRYXRm9+QGqAwzHxK/Mv4K2ECB9P3vWDAw1GEqsAaPA1yAMKcC0ylPnBWYTwbjqMArNuww42kdhbUBj8kKAaw0SUgAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Tertiary, Wilcox Group",
     "url": "f62e468b185e18a062c8a40a54bcec8e",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATUlEQVQ4je3UsQ3AMAwDQZrgYN4sqwnwGBklABO4dC110Q9wBQvqudcEPVGRGdrYwLgqvJeGUJwaTKc8cdZgPhUYRw3+Y0Mz9tOWZMYHhZkPaTTg0zoAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Tertiary, Ackerman Formation of Wilcox Group",
     "url": "7a67d7b078aa7b57df67d9ecd4f08ae5",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASElEQVQ4jWP5f3q6AwMDkwMDVcC/AyxgwxgZ6qli3n8mBhYGKgOWUQMpBiyUG4EKRg2kHLBQwQwUMGrgCAnDfwdAJS11wL8DAOScCzKeAUavAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mesoproterozoic, lower unit of Coot Mountain",
     "url": "42aed603ea41ab81fd212ff0f3ffffbc",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASElEQVQ4jWP5b5PhwMDwz4GBKoDpAAvYsP8M9VQxj/EfAwsDlQHLqIEUAxbKjUAFowZSDlioYAYKGDVwhIQh0wFQSUsdwHQAAPeGCnLG4Ul1AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mesoproterozoic, upper unit of Coot Mountain",
     "url": "d3229eb71c38e125324979b5d84cc6ae",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATUlEQVQ4jWN5LOHiwMTwz4GBCuAfA9MBFrBh/xnqqWEgE+M/BhYGKgOWUQMpBiyUG4EKRg2kHLBQwQwUMGrgiAjDfwxMB0AlLTUAyCwA8rINEFpSDQQAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mesoproterozoic, diabase dike",
     "url": "72b98bb5b02995058e8a569d543323f2",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPElEQVQ4jWNpYGBwYIBgaoADLFDD6qlkIAPIQKoCllEDKQYslBuBCkYNpBywUMEMFDBq4EgJwwNUNO8AAJZRBFB3gF9xAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mesoproterozoic, unnamed plutonic rocks",
     "url": "c4b2b82407434767d74d5ba3a15b5e85",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UMQ0AMQxDUdcysDIrjAI5AkVmnTJ2TrbmA3iDB+vbe5qcKIj2UWADWBWgSQjFqcF0yhN3DeZTgXHV4BMb0j7xtBWF9QNtPw+0KTidEAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "Mesoproterozoic, Silvermine Granite",
     "url": "2afaf3fefc23c40e1f1d871ffa547cbf",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4jWM5rZHhwPTvnwMDFcA/JqYDLFDD6qlhINO/fwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhv+YmA6ASlpqAJBZAN5AECnxsJ1IAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": "undifferentiated igneous rock",
     "url": "ae5b11eb67e57b7be95901a5b12d1994",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARklEQVQ4jWP5XVHhwMDAAMLUAAdYQIYx/meop4Zp/xkZGEAGUhWwjBpIMWCh3AhUMGog5YCFCmaggFEDR0oYHgCVtFQCBwCM1Ai7lj4FSwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mesoproterozoic, Tuff of Little Thorny Mountain",
     "url": "71b268af9fba3df9bf89ba6a27c9b465",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASUlEQVQ4je3UMREAIAxD0dCLMJyBJwx0xxNwjMzNRr+AN2QIZx8VWBWSzHmxgtIU3MYCIY4JhmOceEswHgXGU4KfbGh+n1aT+QFBTwvM2IHwOQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mesoproterozoic, Tuff of Mule Mountain",
     "url": "afc3678b8091b6cfa5e5b339fcd28657",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UsREAIQwDQdmjwuiM1si/CDrxMw6JrQxfARsoEPe3RyAGBDl8MTEzmwow/gAhjg2WY524a7AeBcZVg09s6PCVT6sorQPwBxBWOwYADwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "PreCambrian rhyolites",
     "url": "ae3917ac5f6599ca46e7a55921a6e3a9",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPElEQVQ4jWP5z8DgwADB1AAHWKCG1VPJQAaQgVQFLKMGUgxYKDcCFYwaSDlgoYIZKGDUwJEShgeoaN4BALmrBM+A5UK1AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mesoproterozoic, Rhyolite of Russell Mountain",
     "url": "8b2eafcff0d9bbdf9f2d451bd9b2ad5d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UMREAIAxD0ZSLMJxhjb0icAJcR+Zmo1/AGzKEy71voENQAyYDM7OhAPc5IMSxwHTME28F5qPAeCrwiw0bMONpFYV1ATXtDkJm69KjAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mesoproterozoic, Rhyolite of Sutton Creek",
     "url": "66edc0f2876848c024c9f792b974a060",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAR0lEQVQ4je3UsREAIAxC0cgxmJs5mpksetpZh878AV5BAdec3SK6KQKcF2ttSMAIo4ljgemYJ94KzEeB8VTgHxsCfp5WEuAboBkOSzTY7j4AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mesoproterozoic, Rhyolite of Shut-In Mountain",
     "url": "725e1301cd0ec6c071bb484e9c11a7e3",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWO5v/m0w79/DA4MVABMTAwHWECGMTIy1lPDwH///jOwMFAZsIwaSDFgodwIVDBqIOWAhQpmoIBRA0dEGDIxMRwAlbTUACCzANv0ECozjxHhAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mesoproterozoic, Rhyolite of Stegall Mountain",
     "url": "d688fa29f39852ede6c18637e7eca37e",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4je3UsREAIQwDQVujwuiMomjA+ffkZwiJrQxfARsoEL+1hmUOUwQED+buU+H9mUYTxwbLsU7cNViPAuOqwTc2BOI8rSQgNsHRD/6zSrFdAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mesoproterozoic, volcaniclastic conglomerate, breccia and sandstone",
     "url": "28c2bdecce8984a4302e4192f5a5d2b7",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAR0lEQVQ4je3UsQ0AIAwDwQd5MDZjNbZhC4RSUscd+QGucGFtGAcGhjosBdZgOsADCHMqMJ3yxFuB+WQwngr8YsMOK57WUVgXY/8ItscSImQAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Precambrian Mafics",
     "url": "3a3bfaae95e8cdc7a800979048c2dce5",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARklEQVQ4jWNJSUlxYGBgAGFqgAMsIMP+//9fTw3TGBkZGUAGUhWwjBpIMWCh3AhUMGog5YCFCmaggFEDR0oYHgCVtFQCBwDNPAf/VD55PwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Precambrian Intrusives",
     "url": "93813008263798caef111b0fc3746f53",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAR0lEQVQ4je3UsQ0AIAwDwQd5MDZjNXp2QiglddyRH+AKF9aGcWBgqMNSYA2mAzyAMKcC0ylPvBWYTwbjqcAvNuyw4mkdhXUBstwImsXMECsAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Pre-Burlington-aged bedrock",
     "url": "2fb799ab9683e64d65b178c89c0dd842",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARklEQVQ4je3UsQ0AMAgDQZA8WDbLICzDZkQuqXEXXqK9wgWIiGNmPEUJYu5+FVpVGUFpWHAc5kRvwXkQGK0Ff9kw+WlF5QPpQAueQWwKqAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "pre-Mb"
     ]
    },
    {
     "label": "Unassigned sandstone",
     "url": "0586db1c38978f50589bcbee7563e26f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASElEQVQ4je3UsQ3AMAwDwYfBwTyE98lqmkwOnM612EU/wBUsqL2YDCaOktCHbR4LOECYU4PlVCfuGqwng3HV4D82TOI8raUkXjRlCSQ78035AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Precambrian Volcanics",
     "url": "ae3917ac5f6599ca46e7a55921a6e3a9",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPElEQVQ4jWP5z8DgwADB1AAHWKCG1VPJQAaQgVQFLKMGUgxYKDcCFYwaSDlgoYIZKGDUwJEShgeoaN4BALmrBM+A5UK1AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "v"
     ]
    },
    {
     "label": "<all other values>",
     "url": "9fe37c026b7bbed80941bb52b10a73d2",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAKklEQVQ4je3MIQEAAAzDsIP613w83MFFQLgyFmr4Ii30KBxhoUfhCAtPexArAFF5acCuAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "1",
     "height": 20,
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     "groupId": "0",
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     "values": [
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     "contentType": "image/png",
     "groupId": "0",
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     "values": [
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     "groupId": "0",
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     "values": [
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     "groupId": "0",
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     "values": [
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     "groupId": "0",
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     "values": [
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