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National Atlas of the United States
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Public
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Environment
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Massachusetts
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Florida
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Arkansas
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Polygon
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Year
1972
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1. National Wilderness Preservation System of the United States, 2006
1972. National Atlas of the United States. This polygon shapefile contains National Wilderness Preservation System areas of 640 acres or more, in the United States, Puerto Rico, and the U.S.... National Atlas of the United States.