Tailings pile created by the National Mine in the turn of the century coal mining town of Stewartville in Black Diamond Mines Regional Preserve in Eas

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Tailings pile created by the National Mine in the turn of the century coal mining town of Stewartville in Black Diamond Mines Regional Preserve in Eastern Contra Costa County in the San Francisco Bay Area.

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Size: 5616px × 3744px
Location: black diamond mines regional preserver, antioch, california, united states
Photo credit: © Rick Pisio\RWP Photography / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: area, bay, black, california, century, contra, costa, county, diamond, east, eastern, francisco, mines, mining, pile, preserve, regional, san, stewartville, tailings, turn, valley