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Federal
Offshore marine place names and undersea feature places names official listing from 2015-12 to 2017-07 (NCEI Accession 0176604)
National Oceanic and Atmospheric Administration, Department of Commerce —
This data package contains both the Marine Place Names as well as the Undersea Feature Places Names as published by MarineCadastre.gov. The Marine Place Names were... -
Triangles and Medians
District of Columbia —
Department of Parks and Recreation (DPR) properties identified as polygons for Triangles and Medians.