You searched for: Author Beikman, Helen M. Remove constraint Author: Beikman, Helen M. Author King, Philip B. Remove constraint Author: King, Philip B. Place Utah Remove constraint Place: Utah Place Georgia Remove constraint Place: Georgia Data type Polygon Remove constraint Data type: Polygon
2005. King, Philip B., Arndt, Raymond E., Schruben, Paul G., Bawiec, Walter J., and Beikman, Helen M. This line shapefile shows the outlines of major calderas and impact structures in the United States. This layer is part of the Geologic Map of the ... Geological Survey (U.S.).