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Author
Geological Survey (U.S.)
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Subject
Boundaries
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Place
United States
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Year
1972
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1. State Boundaries of the United States, 2005
1972. Geological Survey (U.S.). This polygon shapefile portrays the state boundaries of the United States, and the boundaries of Puerto Rico and the U.S. Virgin Islands. The map l... Geological Survey (U.S.).
2. United States National Atlas Federal and Indian Land Areas, 1972-2004
1972. National Atlas of the United States, Environmental Systems Research Institute (Redlands, Calif.), and Geological Survey (U.S.). This polygon shapefile represents the federal and Indian-owned land areas (for example, Bureau of Indian Affairs, Department of Defense, and Tennes... Environmental Systems Research Institute (Redlands, Calif.).