California Hotel Reservations
Black Diamond Mines Regional Preserve
Sprawled across more than 5,000 acres, the Black Diamond Mines Regional Preserve is a top attraction in the San Francisco Bay area, southeast of Martinez. The land in the preserve produced almost four million tons of coal during the late 1860s, into the early 1900s.
There were twelve mines located in the area's five mining towns that became the largest coal-producing mines in the state.
While in this historical area, be sure to visit the Rose Hill Cemetery, where more than 200 people are buried from the area. Visit the preserve for a guided underground tour of the Hazel-Atlas Mine to learn more about mine operations. Go above ground for a wonderful afternoon of hiking on the preserve's sixty miles of trails.
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