1. Geologic map of the Twentynine Palms quadrangle, San Bernardino and Riverside Counties, California
1968. 2012-10-11T14:54:31Z. 2022-12-08T04:40:56Z. Dibblee, T. W. (Thomas Wilson), 1911-. U.S. Geological Survey. English. Public. California, San Bernardino County, and Riverside County.
