1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, and 2006. Nature Conservancy (U.S.). This data product was created as part of the Northwest Atlantic Marine Ecoregional Assessment. The Nature Conservancy developed this science-based ... Northeast Ocean Data.
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2007. World Wildlife Fund (WWF). This raster layer is a void-filled digital elevation model (DEM) of Central America at 15 arc-seconds resolution. Elevation is expressed in meters ... U.S. Geological Survey.
2007. World Wildlife Fund (WWF). HydroSHEDS (Hydrological data and maps based on SHuttle Elevation Derivatives at multiple Scales) provides hydrographic information in a consistent... U.S. Geological Survey.
1794. Rumsey, David, 1944-, Delarochette, L. (Louis), 1731-1802, and Faden, William, 1749-1836. This layer is a georeferenced image of a map of Scandinavia. The original map appears in "(General atlas. 1811)." The historic map layers in the Go... Cartography Associates.
1804. Rumsey, David, 1944-. This layer is a georeferenced image of a map of South Asia, including India and Pakistan, originally created by J. Rennell, T. Kitchen, R. Laurie, ... Cartography Associates.
1862. Rumsey, David, 1944- and Colton, J. H. (Joseph Hutchins), 1800-1893. This layer is a georeferenced image of a Civil War map - Confederacy green, North red, border states yellow. A pasted down sheet in the bottom marg... Cartography Associates.
1893. Ottoman Army. This layer is a georeferenced image of a map of the Ottoman Empire originally produced in 1893. "This is a key milestone in the history of Ottoman ... Stanford University. Center for Spatial and Textual Analysis.
1801. Rumsey, David, 1944- and Cary, John, ca. 1754-1835. This layer is a georeferenced image of a map of China and Korea originally created by J. Cary in 1801. The original map appears in 'Cary's New Univ... Cartography Associates.
1796. Stanford University. Center for Spatial and Textual Analysis and Carey, Mathew, 1760-1839. This layer is a georeferenced raster image of a map of the United States originally created by Matthew Carey and engraved by William Barker. The or... Stanford Digital Repository.
1840. Rumsey, David, 1944- and Codazzi, Agustin, 1793-1859. This layer is a georeferenced image of a map of Colombia, originally created by A. Codazzi in 1840. The original map appears in "Atlas Fisico y Pol... Cartography Associates.