1980. 2018-05-18T18:34:26Z. 2018-05-18T18:34:26Z. California. Division of Mines and Geology. Division of Mines and Geology, U.S. G.P.O.). English. cartographic image. Public. California, Imperial Valley (Calif. and Mexico), California., North America, and Imperial Valley.
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1980. 2018-04-24T19:49:16Z. 2018-04-24T19:49:16Z. National Geophysical and Solar-Terrestrial Data Center. Idaho Dept. of Water Resources. English. cartographic image. Public. Idaho and Idaho.
1980. 2018-05-21T20:04:51Z. 2018-05-21T20:04:51Z. New Mexico Energy Institute at New Mexico State University. Division of Geothermal Energy ; Map available free of charge from New Mexico Energy Institute. English. cartographic image. Public. New Mexico and New Mexico.
1980. 2018-05-24T20:08:06Z. 2018-05-24T20:08:06Z. Utah Geological and Mineral Survey. The Survey, U.S. G.P.O.). English. cartographic image. Public. Utah and Utah.
