You searched for: Subject Dams Remove constraint Subject: Dams Subject Structure Remove constraint Subject: Structure Place United States Remove constraint Place: United States Format Shapefile Remove constraint Format: Shapefile
2002. 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.).
2013. Institute for Water Resources (U.S.). Navigation Data Center. This point shapefile contains the locations of waterways locks in the United States. The Navigation Data Center had several objectives in developin... United States. Bureau of Transportation Statistics.