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    FederalProtected Areas Database of the United States (PAD-US) NGDADepartment of the Interior — This is series-level metadata for the USGS Protected Areas Database of the United States (PAD-US) data released by the United States Geological Survey (USGS). PAD-US...
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    FederalUSGS US Topo Map CollectionDepartment of the Interior — Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography,...
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    FederalUSGS Surface-Water Data for the Nation - National Water Information System (NWIS)Department of the Interior — The USGS compiles online access to water-resources data collected at approximately 1.5 million sites in all 50 States, the District of Columbia, Puerto Rico, the...
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    FederalHydrologic landscape regions of the United StatesDepartment of the Interior — Hydrologic landscape regions (HLRs) in the United States were delineated by using geographic information system (GIS) tools and statistical methods including...
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    FederalTerrestrial Ecosystems - Land Surface Forms of the Conterminous United StatesDepartment of the Interior — The U.S. Geological Survey (USGS) has generated land surface form classes for the contiguous United States. These land surface form classes were created as part of an...
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    FederalWater-level change, High Plains aquifer, 1980 to 1995Department of the Interior — This raster data set represents water-level change in the High Plains aquifer of the United States from 1980 to 1995, in feet. The High Plains aquifer underlies 112.6...
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    FederalUSGS Streamgages Linked to the Medium Resolution NHDDepartment of the Interior — The locations of approximately 23,000 current and historical U.S. Geological Survey (USGS) streamgages in the United States and Puerto Rico (with the exception of...
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    FederalWater-level change, High Plains aquifer, 1995 to 2000Department of the Interior — This raster data set represents water-level change in the High Plains aquifer of the United States from 1995 to 2000, in feet. The High Plains aquifer underlies 112.6...
