Black Diamond Mines Regional Preserve

Black Diamond Mines Regional Preserve - Park

Around East County: New exhibit for Antioch's Black Diamond

Black Diamond Mines Regional Preserve Map by EBRPD

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Black Diamond Mines Regional Preserve, Antioch, California Stock

Black Diamond Mines Regional Preserve - Rose Hill Cemetery above

Black Diamond Mines Regional Preserve

Photos from Black Diamond Mine Regional Preserve's new coal mine

Black Diamond Mines Regional Preserve, Antioch, California Stock

Climbing - Picture of Black Diamond Mines Regional Preserve