Search Results
2005. Reed, John Calvin, Jr. 1930- and Bush, Charles A. This line shapefile represents major fault lines in Alaska. This map complements the Generalized Geologic Map of the Conterminous United States by ... Geological Survey (U.S.) and National Atlas of the United States.
2005. Reed, John Calvin, Jr. 1930- and Bush, Charles A. This line shapefile represents major fault lines with line decorations (added for display purposes) in Alaska. This map complements the Generalized... Geological Survey (U.S.) and National Atlas of the United States.
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.) and National Atlas of the United States.
2005. Geological Survey (U.S.). This map layer contains locations and information on faults and associated folds, in the United States, that are believed to be sources of signific... National Atlas of the United States.