2007. Contra Costa County. Building outlines of schools, including high schools, middle schools, and elementary schools, in Contra Costa County, California. Contra Costa County (Calif.).
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2007. Contra Costa County. Locations of schools, including high schools, middle schools, and elementary schools, in Contra Costa County, California. Contra Costa County (Calif.).
2009. Contra Costa County. Various zoning areas in Contra Costa County, California. Contra Costa County (Calif.).