You searched for: Subject Society Remove constraint Subject: Society Subject Natural areas Remove constraint Subject: Natural areas Place United States Remove constraint Place: United States Data type Polygon Remove constraint Data type: Polygon
1972. National Atlas of the United States. This polygon shapefile contains federally owned or administered lands of the United States, Puerto Rico, and the U.S. Virgin Islands. Only areas of... National Atlas of the United States.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile depicts 394 authorized Park Service units in the United States only with scale rankings that are over 100,000 acres. Scale r... North American Cartographic Information Society.