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Mount Diablo Coal Field
Black Diamond Mines Regional Park from State Hwy 4 take Somersville Rd 3.9 mi S, Antioch,
CA ,
USA
Latitude & Longitude:
37° 57' 22.0464",
-121° 51' 43.0344"
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California State
Historical Marker
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This was the largest coal-mining district in California from 1860 to 1914, with five towns-Nortonville, Somersville, Stewartsville, Judsonville, and West Hartley-near twelve major mines. Today the towns are gone, their buildings moved to other communities after the mines closed - the East Bay Regional Park District is preserving mine openings, tailings, railroad beds, and a pioneer cemetery.
Last updated: 2/15/2016 21:05:00 |
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Mount Diablo Coal Field Historical Marker Location Map, Antioch, California Map
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