Visitors tour the Hazel-Atlas Mine at the Black Diamond Mines Regional Preserve earlier this year in Antioch. Tours are given through November.
Visitors tour the Hazel-Atlas Mine at the Black Diamond Mines Regional Preserve earlier this year in Antioch. Tours are given through November. ARIC CRABB Bay Area News Group
Visitors tour the Hazel-Atlas Mine at the Black Diamond Mines Regional Preserve earlier this year in Antioch. Tours are given through November. ARIC CRABB Bay Area News Group