You searched for: Author Beikman, Helen M. Remove constraint Author: Beikman, Helen M. Author Schruben, Paul G. Remove constraint Author: Schruben, Paul G. Author Arndt, Raymond E. Remove constraint Author: Arndt, Raymond E. Place Massachusetts Remove constraint Place: Massachusetts Place United States Remove constraint Place: United States Place Florida Remove constraint Place: Florida 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.).