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USGS Land Cover (NLCD) Overlay Map Service from The National Map - National Geospatial Data Asset (NGDA) National Land Cover Database (NLCD) NGDA 11 recent views
NLCD 1992, NLCD 2001, NLCD 2006, and NLCD 2011 are National Land Cover Database classification schemes based primarily on Landsat data along with ancillary data sources, such as... -
USGS Hydro Cached Base Map Service from The National Map NGDA
âThis service is a cached overlay of a cartographic representation of the National Hydrography Dataset (NHD). âThe NHD is a comprehensive set of digital âgeoâspatial...