You searched for: Author Bawiec, Walter J. Remove constraint Author: Bawiec, Walter J. Author King, Philip B. Remove constraint Author: King, Philip B. Access Public Remove constraint Access: Public Subject Impact craters Remove constraint Subject: Impact craters Subject Geoscientific Information Remove constraint Subject: Geoscientific Information Place Massachusetts Remove constraint Place: Massachusetts Data type Line Remove constraint Data type: Line
1. Outlines of Major Calderas and Impact Structures: Generalized Geologic Map of the Conterminous United States, 2005
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. A caldera is a large, generally circular depre... Geological Survey (U.S.).