{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Coal Mine Entrances",
   "layerType": "Feature Layer",
   "minScale": 50000,
   "maxScale": 0,
   "legend": [
    {
     "label": "Air shaft",
     "url": "821522eecc0f8b6a481f7336e8044210",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAN5JREFUOI3t0iFLBFEUBeAvLL6wbdoEQbvZsMms0azBst0giMXkHxCDRSwWf4fFoFXEIiiM6TXDlQ0Gd0GXndkZtemJh/O+V27PL6f3D9ZlqSzLflVVj3j9CbiNQyxXVQWBS+zhpROYUjqKiP3pGltYwwDPrcCU0mAG9jmLOMVGKzAihg3YJOtj+GkuiJUW4GTXChy10VJKo4j40tWB11id440i4ma6rAOPMcRCA3iG3BZ8wA7OazZX2J31sOmwL4qiuMs5H/i4uz7ux5+c4K0rKOd8i82mTSfwO/mD4Dto2TjVL2D98AAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "AIR"
     ]
    },
    {
     "label": "Air slope",
     "url": "6d75c1d99834b86a2986ebee3d522399",
     "imageData": "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",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "AIRSL"
     ]
    },
    {
     "label": "Escape shaft",
     "url": "b9d864d306ea3dbf9b65eab960c08b43",
     "imageData": "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",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "ESCAP"
     ]
    },
    {
     "label": "Escape way",
     "url": "a2fd9b9d73e1c3738ec974e1a33bbbe8",
     "imageData": "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",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "ESWAY"
     ]
    },
    {
     "label": "Hoisting shaft",
     "url": "4cbd32b5c2362add66375bea724d43ed",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAIJJREFUOI3tz7kJhQAQBNBRhGlLq7AecyOr+JVYg1estrCBYOIHEWXHI9MJ93jsRng40Qf+8xP3SwCFAqaeRLIys2lbv/QyydrMEgD5bXCFjXv9UyDJZsGGoxkZVDAZXGG9N+uCJFsVc8EFi1XMA7szl0kggMzZD1UwUC9Swct5ITgDA+4wezbU5aMAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "HOIST"
     ]
    },
    {
     "label": "Slope, adit",
     "url": "e197563b615cb38f03b60d9974e3b432",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAItJREFUOI3tzyEOwkAURdHbpMlPDWIkq0CRagzbYC+1rIDFEBZQhWcHzU+Deyg8nTadzAhE7wJO3qspXL2Bfw6a2UnSvRgoqQV64F0EBK7ABditBUIID3fv58APcEtZ5O6LC7OLgQ2wB6qVxgCMUdDMzpIOwCth1HMWlHQEugRs0u/lLCwGZreB+X0B3aEfU/g+RwcAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "SLOPE"
     ]
    }
   ]
  },
  {
   "layerId": 1,
   "layerName": "Coal Mines (point locations)",
   "layerType": "Feature Layer",
   "minScale": 1200000,
   "maxScale": 0,
   "legend": [
    {
     "label": "Point location, 1/4 section",
     "url": "083bc736099c16cc0cf8ba4411eec0bd",
     "imageData": "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",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "Point location, 1/4 section"
     ]
    },
    {
     "label": "Point location, w/in section",
     "url": "b02d558b0faa182348f620663d8364ce",
     "imageData": "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",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "Point location, w/in section"
     ]
    }
   ]
  },
  {
   "layerId": 2,
   "layerName": "Coal Mines (known/approx. extent)",
   "layerType": "Feature Layer",
   "minScale": 1200000,
   "maxScale": 8001,
   "legend": [
    {
     "label": "Surveyed map, known loc'n and extent",
     "url": "124ee8655a2002d07ea057777e27fcf4",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAIRJREFUOI3dlDEOwCAMA43EN3hXZ17G3HfRN3RNh4qqUIJCGqlSPXnhTDzYw1geAHICvQWFCHcBLZQTKES4ClhSNLDiRT+kFeSWM4zzU8D7I86zwF7qjB7A0TkqYAtu4T/u0AxYJOltqkNJb993KD172wdADj7y7DhY7KLZHlYDq93Bng4/iE0UqqS87AAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "Surveyed map"
     ]
    },
    {
     "label": "No map, approx. extent, known loc'n",
     "url": "2a4d88a80a31049cbee4165a0b08c519",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAIJJREFUOI1jYaAyYGFgYGBgiH72n2KTlkoxIgykBoh+9p9hqRQjqoFQW8gyDAqIc2H+//8MExkZ8bJJMhBZEy42TgOx2EoKwDQQj3fIMxDdYHTDh3EYUs1AGCAm3EgKQ2LCbeDDkFhvv3mOx0BchuNj4ywcqFAuUq88RClgyS0HsQAANqRQ58shtGEAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "Unmapped, extent approx."
     ]
    },
    {
     "label": "Surveyed map, loc'n known to section, known extent",
     "url": "9d97f255965ae7eedf215139dab07053",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAIZJREFUOI1jYaAyYGFgYGDYyxD6n1KDnBlWM8INpAbYyxD635lhNSOKgTBbyDEMxibKhdcYEv5rMSxgxMcmyUBkTbjYOA3EZispAMNAfN4hy0B0g9ENH8ZhSDUDYYCYcCMpDIkJt4EPQ2K9/ZzhK24DcRmOj42zcKBGuUi18hClgCW3HMQGAD11VKiuPvtSAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "Surveyed map, poor location"
     ]
    },
    {
     "label": "Surface mine",
     "url": "4b13da1255571f1679f8290c0d57e95a",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAIJJREFUOI1jYaAyYGFgYGBgOPr/P8UmWTMyIgykBjj6/z+DNSMjqoFQW8gyDAqIcmHJg///exQgluFik2QgsiZcbJwGYrOVFIBhID7vkGUgusHohg/jMKSagTBATLiRFIbEhNvAhyHR3n6Kx0BchuNl4ywcqFAuUq88RClgyS0HsQAAHyRkUNO5U88AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "Surface"
     ]
    }
   ]
  },
  {
   "layerId": 3,
   "layerName": "Coal Mines (known/approx. extent)",
   "layerType": "Feature Layer",
   "minScale": 8000,
   "maxScale": 500,
   "legend": [
    {
     "label": "Surveyed map, known loc'n and extent",
     "url": "a8504fd0cf3c135f8885afec6bcad3a3",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAENJREFUOI1jYaAyYGFgYGB4PJ/hPzUMk01kYGShhkHIAMVA2UQGRnIMQfYhbV04auCogaMGDg8DqVEu0saF5JaD2AAAseIJUUr1fmIAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "Surveyed map"
     ]
    },
    {
     "label": "No map, approx. extent, known loc'n",
     "url": "2a4d88a80a31049cbee4165a0b08c519",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAIJJREFUOI1jYaAyYGFgYGBgiH72n2KTlkoxIgykBoh+9p9hqRQjqoFQW8gyDAqIc2H+//8MExkZ8bJJMhBZEy42TgOx2EoKwDQQj3fIMxDdYHTDh3EYUs1AGCAm3EgKQ2LCbeDDkFhvv3mOx0BchuNj4ywcqFAuUq88RClgyS0HsQAANqRQ58shtGEAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "Unmapped, extent approx."
     ]
    },
    {
     "label": "Surveyed map, poor location",
     "url": "a18daf16328645543e17ea2e73924ae8",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAHpJREFUOI3dlNEJACEMQyM4jVM5mlO5jvdVUe9aWi0Il6/8+GpDSYSzIgBU5HYKSiihAz1UkVtCCROQpuzAyKt+SNMlbwKOjzjPAr+mWvQCSutsAVfwCv9xhm5AkiY3U4aa3O5nqF1bBHJwybPl4NGLbn04Fezp7Y16AP2yUszMeN/oAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "Surveyed map, poor location"
     ]
    },
    {
     "label": "Surface mine",
     "url": "21dcfec8b1752bc9d7b49395ac9f3642",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAIJJREFUOI1jYaAyYGFgYGBgWPnsP8UmhUsxIgykBlj57D9DuBQjqoFQW8gyDAqIc+HR//8ZrBkZ8bJJMhBZEy42TgOx2EoKwDQQj3fIMxDdYHTDh3EYUs1AGCAm3EgKQ2LCbeDDkFhvP3mOx0BchuNj4ywcqFAuUq88RClgyS0HsQAA+KhLKZDtc3kAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "Surface"
     ]
    }
   ]
  },
  {
   "layerId": 4,
   "layerName": "Coal Mines",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 1200000,
   "legend": [
    {
     "label": "",
     "url": "54d86a9011254a1e5d2c20118365a234",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADFJREFUOI3tzDERADAMA7H3nVkFf3GlawB4tADIhBmAtxvZRnIkOho2bNiw4Q1HSoUfBe0Djlf7bxYAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 7,
   "layerName": "coalmine_names",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "f67cc1bc7cde15e3889bc3464cf39cee",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAFBJREFUOI1jYaAyYBk1kHYG7r38X5npPwMrLnnmfwyP7QwYvxJtION/hr3/GRjkccn/ZWLwZGBg2EG0geSCUQNHtIFOeowKVDWQXDBqIOUAAN7yDL0NdJLHAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  }
 ]
}