State Historic Park - California
Marsh Creek State Historic Park is in east Contra Costa County, California. The newly named park (formerly called the Cowell Ranch/John Marsh State Park) contains 3,659 acres (1,481 ha) and is about 3.3 miles (5.3 km) south of downtown Brentwood. It is not open to the public.
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East Bay Regional Parks - Overview Map
Overview Map of the East Bay Regional Park District in California. Published by the East Bay Regional Park District.
Mother Lode - Boundary Map
Boundary Map of the Mother Lode BLM Field Office in California. Published by the Bureau of Land Management (BLM).