
Coal Mine Experience
About
BLACK DIAMOND MINES REGIONAL PRESERVE – Although little evidence remains from the area’s coal mining history, Black Diamond Mines Regional Preserve was once home to the most productive coal mines in California and the thriving mining communities that supported its industry. Visitors can still catch a glimpse of what it was like to be a coal miner in the 1850s through the early 1900s and discover how and why this rock earned the name “black diamond.” In the Coal Mining Experience, participants are invited on an underground, self-paced walk to examine the layers of sediment from below, safely explore the dangerous work of coal mining through exhibits and understand how the local mines powered the growth of the San Francisco Bay area. All participants must be age 7 or older, and parent participation is required. Hard hats are required and provided. Underground spaces may feel claustrophobic for some people. Please bring a jacket; you will be underground in the mine, where temperatures are in the mid-50's year-round. Arrive at least 15 minutes early, to allow enough time for parking and walking to the Greathouse Visitor Center, located ¼ mile from the parking lot. The walk from the parking lot includes some steep and uneven terrain. Park in the upper parking lot, 1 mile past the kiosk. Once parked, continue up the hill, following signs to the Greathouse Visitor Center. Each tour is limited to 15 total maximum participants. Cost is $3 per person. $5 per vehicle parking fee applies





