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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1803. Delarochette, L. (Louis), 1731-1802, Hatchett, J. (John), and Stanford Geospatial Center. This layer is a georeferenced raster image of the historic paper map of the Indian Ocean. The original map was originally created by Louis Delaroch... Stanford Digital Repository.
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.
2007. National Center for Ecological Analysis and Synthesis. This raster dataset is a global model of artisanal fishing based on small scale fisheries data and population proximity to coastal areas. See the L... Science.
2001. National Atlas of the United States. The Bathymetric Shaded Relief of North America map layer shows depth ranges using colors, with relief enhanced by shading. The image was derived fr... National Atlas of the United States.
2001. National Atlas of the United States. The Bathymetry of North America map layer shows depth ranges using colors. The image was derived from the National Geophysical Data Center's ETOPO2... National Atlas of the United States.
2007. National Center for Ecological Analysis and Synthesis. This raster dataset shows the locations of benthic structures (oil rigs) in the world's oceans. Structures included are gas and communication pipel... Science.
2007. National Center for Ecological Analysis and Synthesis. This raster layer represents global commercial shipping activity including location and travel routes. Commercial shipping activity can lead to shi... Science.
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.