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Start Over Year 2004 Resource Type Point data Publisher Geological Survey (U.S.)
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.).
2004. Geological Survey (U.S.), Instituto Nacional de Estadística, Geografía e Informática (Mexico), and Canada Centre for Remote Sensing. A joint venture involving the National Atlas programs in Canada (Natural Resources Canada), Mexico (Instituto Nacional de Estadística Geografía e I... Geological Survey (U.S.) and Instituto Nacional de Estadística, Geografía e Informática (Mexico).