You searched for: Publisher National Atlas of the United States Remove constraint Publisher: National Atlas of the United States Place Massachusetts Remove constraint Place: Massachusetts Place Alabama Remove constraint Place: Alabama Data type Polygon Remove constraint Data type: Polygon Year 1984 Remove constraint Year: 1984
1984. Tobin, B. D. and Weary, David J. This polygon shapefile is a digital version of U.S. Geological Survey Open File Report 2004-1352, Engineering Aspects of Karst. The open-file repor... National Atlas of the United States.