1983. 2023-07-31T16:47:10Z. 2023-08-01T03:04:58Z. Todd, Victoria R. (Victoria Roy). U.S. Geological Survey. English. cartographic image. Public. California, San Diego County, and San Diego County.
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2. Geologic map of the Tule Springs quadrangle, San Diego County, California [cartographic material]
1982. 2002-06-01T04:00:00Z. 2023-03-22T03:01:24Z. Geological Survey (U.S.). The Survey. English. text. Public. California, San Diego County, and San Diego County (Calif.).
