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2014. Geological Survey (U.S.). This map layer shows streams of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer was produced primarily from the Medium-R... Geological Survey (U.S.).
2014. Geological Survey (U.S.). This polygon shapefile represents waterbodies and wetlands of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer was produc... Geological Survey (U.S.).
2010. United States. National Oceanic and Atmospheric Administration, United States. National Ocean Service, United States. Department of Commerce, and Coastal Services Center (U.S.). This line shapefile displays graticules (grid lines of latitude parallels and longitude meridians) for the Northeastern United States at 15 degree ... Coastal Services Center (U.S.).
1992 and 1993. Geological Survey (U.S.). This raster layer is a georeferenced grid map image of land cover characteristics for North America, excluding Hawaii, and including the Caribbean ... Geological Survey (U.S.).
1992. Geological Survey (U.S.). This raster layer is a georeferenced image of 1992 land cover for the conterminous United States, at a resolution of 200 meters. The map layer was ... Geological Survey (U.S.).
2010. United States. National Oceanic and Atmospheric Administration, United States. Department of Commerce, United States. National Ocean Service, and Coastal Services Center (U.S.). This line shapefile displays graticules (grid lines of latitude parallels and longitude meridians) for the Northeastern United States at 5 degree i... Coastal Services Center (U.S.).
2003. Geological Survey (U.S.). This point shapefile represents locations of agricultural minerals operations in the United States. The data represent commodities covered by the M... National Atlas of the United States.
2002. National Atlas of the United States. This polygon shapefile portrays a selected set of information that was collected for the 2002 Census of Agriculture by the National Agricultural St... National Atlas of the United States.
2007. National Atlas of the United States. This polygon shapefile portrays a selected set of information that was collected for the 2007 Census of Agriculture by the National Agricultural St... National Atlas of the United States.
2012. I.M. Systems Group. This point shapefile represents marine aids to navigation in the Northeastern United States. The Coast Guard maintains systems of marine aids to na... Coastal Services Center (U.S.).