Potrero Hills (Solano County, California)
The Potrero Hills are a low mountain range in the Sacramento–San Joaquin River Delta area of southern Solano County, California. Geography. The range is located in the southwestern Sacramento Valley, northeast of Suisun Bay, and southeast of the city of Fairfield. It is part of the Northern Inner Coast Ranges group in the California Coast Ranges System. The Rush Ranch Open Space Preserve unit of the San Francisco Bay National Estuarine Research Reserve is located on Suisun Bay at the western side of the Potrero Hills.