2014. National Atlas of the United States. This line shapefile includes Global Map data showing the coastline of the United States, Puerto Rico, and the U.S. Virgin Islands. The United State... National Atlas of the United States.
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1978. Pinsky, Malin L., Springmeyer, Dane B., Goslin, Matthew N., and Augerot, Xanthippe. This dataset is a visualization of abundance estimates for six species of Pacific salmon (Oncorhynchus spp.): Chinook, Chum, Pink, Steelhead, Socke... Stanford Digital Repository.
1992. National Imagery and Mapping Agency (now National Geospatial-Intelligence Agency). This datalayer is a point coverage representing island features found throughout DCW (Digital Chart of the World) geographic coverage as of 1992. T... National Imagery and Mapping Agency.
1992. National Imagery and Mapping Agency (now National Geospatial-Intelligence Agency). This datalayer is a polyfon coverage representing political and ocean feature areas found throughout DCW (Digital Chart of the World) geographic co... National Imagery and Mapping Agency.
1992. National Imagery and Mapping Agency (now National Geospatial-Intelligence Agency). This datalayer is a polyline coverage representing political boundaries and ocean feature lines found throughout DCW (Digital Chart of the World) g... National Imagery and Mapping Agency.
2011. United States. Bureau of the Census. Geography Division and United States. Bureau of Transportation Statistics. This polyline shapefile depicts hydro coverages that were created using TIGER/Line 2000 shapefile data gathered from ESRI's Geography Network. The ... United States. Bureau of Transportation Statistics.
2011. United States. Bureau of the Census. Geography Division and United States. Bureau of Transportation Statistics. This polygon shapefile depicts hydrography coverages that were created using TIGER/Line 2000 shapefile data gathered from ESRI's Geography Network.... United States. Bureau of Transportation Statistics.
2004. Instituto Nacional de Estadística, Geografía e Informática (Mexico), Canada Centre for Mapping, and Geological Survey (U.S.). This line shapefile shows bathymetric contours with depth in metres for ocean areas covered by the extent of the North American Atlas project. Isob... Canada Centre for Mapping.
2004. Instituto Nacional de Estadística, Geografía e Informática (Mexico), Canada Centre for Mapping, and Geological Survey (U.S.). This polygon shapefile contains bathymetric data with depth in metres for ocean areas covered by the extent of the North American Atlas project. Is... Canada Centre for Mapping.
2001. United States. Minerals Management Service. This polygon shapefile shows the official protraction diagram (OPD) and leasing map boundaries for the United States, covering areas of the Outer C... Geological Survey (U.S.).