Vydavatel U.S. Geological Survey, Department of the Interior
Datum vydání před téměř 10 roky
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This map layer consists of National Wilderness Preservation System areas of 640 acres or more, in the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer was created by extracting these wilderness areas from the National Atlas map layer: Federal Lands of the United States. This is a replacement for the December 2005 map layer.