You searched for: Author Schruben, Paul G. Remove constraint Author: Schruben, Paul G. Access Public Remove constraint Access: Public Place United States Remove constraint Place: United States Place Alabama Remove constraint Place: Alabama Place Arkansas Remove constraint Place: Arkansas Format Shapefile Remove constraint Format: Shapefile
5. Generalized Glacial Limit Lines with Line Decorations: Geology of the Conterminous United States, 2005
1994. King, Philip B., Arndt, Raymond E., Schruben, Paul G., Bawiec, Walter J., and Beikman, Helen M. This polygon shapefile shows the boundaries of geologic units within the United States. This layer is part of the Geologic Map of the United States... Geological Survey (U.S.).