You searched for: Author Patterson, Tom Remove constraint Author: Patterson, Tom Subject Rivers Remove constraint Subject: Rivers Subject Boundaries Remove constraint Subject: Boundaries Data type Line Remove constraint Data type: Line Year 2012 Remove constraint Year: 2012
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polyline shapefile depicts 394 authorized Park Service units in the United States only that are over 100,000 acres. The data does not include ... North American Cartographic Information Society.