1. Preliminary geologic map of Santa Maria 30⁰ by 60⁰ quadrangle, California [microform] Yale Public content 1992. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey : [Books and Open-File Reports Section, distributor]. English. Public. California, Santa Barbara County, and Santa Maria.