Place closure
No recurring date-based closure of Black Diamond Mines Trailhead is published. Park-specific staging and overnight parking and temporary emergency orders still control access.
Trailhead
Black Diamond Mines Trailhead
Black Diamond Mines Regional Preserve, Contra Costa County, California
About this place
Black Diamond Mines provides the reserved backpacking approach to Stewartville Camp by the preserve's signed Stewartville and Nortonville trail network.
Stewartville is approximately 3.2 trail miles from the staging area; the camp has nonpotable water and a pit toilet and is seasonally closed from November through March.
Seasonal access
Closures & seasonal access
Stewartville and Morgan Territory backpack camps close each November through MarchSeasonal access
Park-specific staging and overnight parking: Use the signed Black Diamond Mines Trailhead access in Black Diamond Mines Regional Preserve, Contra Costa County, California. Use the staging area named by the reservation: Black Diamond Mines, Mission Peak Stanford Avenue, Morgan Territory Road, Round Valley, or Sibley. Day-use hours do not independently authorize overnight parking. Stewartville and Morgan Territory backpack camps close each November through March. Mission Peak, Round Valley, and Sibley remain subject to heat, storm, fire, water-system, and park-hour closures.
Before driving
Confirm the exact reservation and park alert. Round Valley's water system is currently out of service, and a reservation does not override a preserve closure.
Map
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- Latitude
- 37.958207° N
- Longitude
- 121.863264° W