2002, 2003, and 2004. Geological Survey (U.S.). This point shapefile portrays major dams of the United States, including Puerto Rico and the U.S. Virgin Islands. The map layer was created by extr... Geological Survey (U.S.).
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2006. Rawson, Peg. This point shapefile depicts major dams in the United States, including Puerto Rico and the U.S. Virgin Islands. The map layer was created by extra... United States. Bureau of Transportation Statistics.
2013. Georgia. National Agency for Public Registry. This line shapefile represents dams and weirs in Georgia. The Global Map Georgia version 2 was developed from the 2008 Year, data - 1:1 000 000, so... International Steering Committee for Global Mapping.