{ "layers": [ { "layerId": 0, "layerName": "USGS Contours", "layerType": "Feature Layer", "minScale": 500000, "maxScale": 0, "legend": [ { "label": "Index", "url": "97fe269d48b2abfb7cdd3befd7f5f1a9", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZOCSSrH/lBgU0/6KEcVAagG4gTAbqGYgtcCogaMGkgEAcLsGH5c4Fs8AAAAASUVORK5CYII=", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Index Contour" ] }, { "label": "Intermediate", "url": "188129017e6fe73f94401ba39d645939", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAM0lEQVQ4jWNhoDJgGTVw1MDBZODdFQ7/KTFIOeIAI4qB1AJwA2E2UM1AaoFRA0cNJAMAAPsABY2y7tIYAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20, "values": [ "Intermediate Contour" ] } ], "legendGroups": [ { "id": "0", "heading": "Contour" } ] } ] }