California Historical Landmarks in Contra Costa County

California Historical Landmark 932
Mount Diablo Coal Field
Somersville Road
Black Diamond Mines Regional Park

California Historical Landmark #932: Mount Diablo Coal Field
California Historical Landmark #932: Mount Diablo Coal Field
22 January 2008
(Click Photos to Zoom)

Mount Diablo Coal Field

From 1860 to 1906 this area was the largest coal mining district in California. Five towns (Nortonville, Somersville, Stewartville, Judsonville, and West Hartley) grew up around twelve major mines. Today the towns are gone, the buildings having been moved to nearby communities after the mines closed. Mine openings, tailings, railroad beds, and a pioneer cemetery are being preserved by the East Bay Regional Park District .

California Registered Historical Landmark No. 932

Plaque placed by the State Department of Parks and Recreation in cooperation with the East Bay Regional Park District and Joaquin Murietta Chapter No. 13, E Clampus Vitus, September 27, 1980

Please see National Register of Historic Places Listing #91001425 for more photographs.

Some Company Towns
Prev | Next
Contra Costa County: List | Map
California: List | Map