2014. National Atlas of the United States. This line shapefile includes Global Map data showing the canals, aqueducts, and the Intracoastal Waterway in the United States, Puerto Rico, and th... National Atlas of the United States.
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2013. Georgia. National Agency for Public Registry. This line shapefile represents aqueducts and canals in Georgia. The Global Map Georgia version 2 was developed from the 2008 Year, data - 1:1 000 ... International Steering Committee for Global Mapping.