Tuibun Ohlone Indians populated a close-by village for 2,000 years before the arrival of Europeans. Their descendants preserve Ohlone culture with programs and unique occasions at adjacent Coyote Hills Regional Park. Subsequent land usage has actually included ranching and farming.
Dumbarton Quarry was in operation from the 1950s through 2007. The gravel was used to construct parts of San Francisco and Oakland International Airports, highways, and numerous other jobs. Quarrying changed a 190-foot hill into a pit 22 acres throughout and 320 feet listed below water level at the deepest point, making it the lowest human-made elevation in North America.Filling the pit with clean fill from Bay Location building projects, East Bay Regional Park District, in partnership with The DeSilva companies, including Dumbarton Quarry Associates, Pacific States Environmental Specialists, Inc., and DeSilva Gates Building And Construction, and with the help of the City of Fremont, transformed the depleted quarry into a beautiful new recreational resource. Paths connect the camping site to adjacent Coyote Hills and the San Francisco Bay National Wildlife Refuge for treking, cycling, picnicking, and viewing of the abundant wildlife.