GIS Basemaps in Shapefile Format |
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[GIS basemaps for the NTS and Western United States are listed below. The content and structure of the root-level basemaps folder are illustrated. Folder locations, filenames, descriptions, and data types are specified. All basemaps are stored in Nevada State Plane (central, in feet), North American Datum 1927] |
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Folder\Filename |
Description |
Type |
Nevada Test Site |
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Folder: ..\Basemaps\NTS\ |
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\Areas\nts_areas.shp |
NTS Operational Area boundaries and labels |
Polygon |
| \Border\nts_border.shp |
NTS boundary extracted from nts_areas.shp |
Polygon |
| \Contours\nts_contours_50m.shp |
Topographic contour lines; 50-meter interval |
Line |
| \Contours\nts_contours_100m.shp |
Topographic contour lines; 100-meter interval |
Line |
| \DEM10m\dem10m.tif |
Shaded relief map prepared from a 10-meter resolution Digital Elevation Model (DEM) derived from airborne radar imagery |
Image |
| \DEM10m\nts_mask.shp |
Polygon mask to visually trim the shaded relief map (dem10m.tif) at the boundary of the NTS |
Polygon |
| \Grid\nts_2500ft.shp |
2,500-ft grid in Nevada State Plane, NAD27 format prepared from numerical coordinate data |
Line |
| \Lakes\nts_lakes.shp |
Lakes and playa lakes |
Polygon |
| \Quads\nts_quads.shp |
1:24,000-scale topographic map boundaries prepared from USGS digital quadrangle index maps of the western United States |
Polygon |
| \Roads\nts_roads.shp |
Primary and secondary roads and trails |
Line |
| \Streams\nts_streams.shp |
Perennial and ephemeral streams |
Line |
Western United States |
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Folder: ..\Basemaps\Western_US\ |
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| \Quads\w-quads_n27f.shp |
1:24,000-scale USGS topographic map boundaries for the Western United States. Contains quad borders (polygons) and quad names (attributes). |
Polygon |
| \States\w-states_n27f.shp |
State outlines for the Western United States. Contains state boundaries (polygons) and state names (attributes). |
Polygon |