El Sobrante is a small, unincorporated community located in Contra Costa County, California. Nestled in the East Bay region of the San Francisco Bay Area, it is known for its suburban charm, mild Mediterranean climate, and proximity to both urban centers and natural attractions. The population was 12,669 at the 2010 census.

The San Pablo Reservoir is an open cut terminal water storage reservoir. It is located in the valley of San Pablo Creek, north of Orinda, California, and south of El Sobrante and Richmond, east of the Berkeley Hills between San Pablo Ridge and Sobrante Ridge. San Pablo Reservoir is an East Bay gem, offering opportunities to get on the water or view the lake from hiking trails and picnic spots.