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Geological Survey (U.S.)
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Military
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Puerto Rico
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Year
1972
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1. United States National Atlas Public Land Survey, 1972-2002
1972. National Atlas of the United States, Environmental Systems Research Institute (Redlands, Calif.), and Geological Survey (U.S.). This polygon shapefile represents the Public Land Surveys (for example, donation lands, land grants, and public and private surveys of public lands... Environmental Systems Research Institute (Redlands, Calif.).