2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile depicts major playas, salt pans and intermittent lakes worldwide. Care must be taken not to have playas extend beyond flat a... North American Cartographic Information Society.
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2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile depicts natural and artificial lakes worldwide. Includes name attributes. Ranked by relative importance, coordinating with r... North American Cartographic Information Society.
2011. United States. Office of the Deputy Under Secretary of Defense (Installations and Environment) and United States. Bureau of Transportation Statistics. This polygon shapefile depicts sites that were selected from the 2010 Base Structure Report (BSR), a summary of the DoD Real Property Inventory (RP... United States. Bureau of Transportation Statistics.
2004. Instituto Nacional de Estadística, Geografía e Informática (Mexico), Geological Survey (U.S.), and Canada Centre for Remote Sensing. This line shapefile shows the coastline, linear hydrographic features, and area hydrographic features in North America. This data set was produced ... Geological Survey (U.S.).
2004. Instituto Nacional de Estadística, Geografía e Informática (Mexico), Geological Survey (U.S.), and Canada Centre for Remote Sensing. This polygon shapefile shows areas of coastline, and other hydrographic features in North America. This data set was produced using digital files s... Geological Survey (U.S.).
Hijmans, Robert J. This polygon shapefile contains the boundary of United States (adm0). This layer is part of the Global Administrative Areas 2015 (v2.8) dataset. University of California, Berkeley. Museum of Vertebrate Zoology and International Rice Research Institute.
Hijmans, Robert J. This polygon shapefile contains the first-level administrative divisions of United States (adm1). Level 1 divisions include states and federal dist... University of California, Berkeley. Museum of Vertebrate Zoology and International Rice Research Institute.
Hijmans, Robert J. This polygon shapefile contains the second-level administrative divisions of United States (adm2). Level 2 divisions include counties and cities. T... University of California, Berkeley. Museum of Vertebrate Zoology and International Rice Research Institute.
2005. Reed, John Calvin, Jr. 1930- and Bush, Charles A. This line shapefile contains lines with labels and tags for major geologic units in Alaska, Hawaii, Puerto Rico and the U.S. Virgin Islands. In add... Geological Survey (U.S.).
2005. Reed, John Calvin, Jr. 1930- and Bush, Charles A. This polygon shapefile contains polygon boundaries, tags and labels for major geologic units in Alaska, Hawaii, Puerto Rico and the U.S. Virgin Isl... Geological Survey (U.S.).