Park
Black Diamond Mines Regional Preserve
22 locals recommend
Tips from locals
Is a great place to hike and offer an inexpensive ($2) mine tour. Great place to get away from the summer heat.
Former coal mining site featuring expansive green space, underground tour,place to just set out on a hike too. Explore also the old graveyard up on the hill, a tour of the Hazel Atlas mines is a must.
Location
5175 Somersville Road
Antioch, CA