You searched for: Author Patterson, Tom Remove constraint Author: Patterson, Tom Subject Boundaries Remove constraint Subject: Boundaries Subject Natural areas Remove constraint Subject: Natural areas Place United States Remove constraint Place: United States Format Shapefile Remove constraint Format: Shapefile Year 0 Remove constraint Year: 0
0. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile depicts 394 authorized Park Service units in the United States only that are over 100,000 acres. The data does not include a... North American Cartographic Information Society.