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Hike Details for Upper Parking Area

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Black Diamond Mines Regional Preserve
Upper Parking Area
RSVPs - 63 -- YES: 18 NO: 38 MAYBE: 7

Upper Parking Area
Click the Staging Area/Trail Name above for park information.
City: Antioch
Region: EastBay
Park: Black Diamond Mines Regional Preserve
Park Map URL: Click Here

Sunday, September 17, 2017 @ 9:00 AM


Event Notes:

Black Diamond Coal Canyon Hike


Join us at 9:00am for the first hike in Black Diamond Mines this year! As the weather promises to cool down in East County, we'll test our luck that it will stay that way come Sunday. A hiker's choice of a moderately challenging 6 mile/1600' or a challenging 7 mile/1900', we will meet at the upper parking lot at the end of the road. For driving directions click here.

Please download and print out the route map here. Route will be Somersville to the Visitor Center, up the stairs, right on Chapparal Loop, right over bridge, up connector trail to Black Diamond, right on Black Diamond Tr, left on Nortonville, left on Black Diamond Tr, straight onto Coal Canyon. Veer right at top of the hill by Jim's Place, then left on Black Diamond Way (paved), continue left on Black Diamond Trail (dirt) at top of hill, continue for a mile. We'll take a break at the rocks just before Manhattan Canyon Trail.

Continue right on Manhattan Canyon Trail, the routes split here. The short hike continues straight on Manhattan Canyon until reaching a T-junction, right, then right onto Nortonville Trail, left on Somersville back to the start. The long hike turns right on Chapparal Loop, over bridge, right on Chapparal loop up the hill and veering left as it becomes Ridge Trail at the power tower. At the top, turn sharp left on Stewartville back down, then left on Pittsburg Mine, right at T-junction, over foot bridge, right on connector trail, right on Somersville back the way you started.

Dogs welcome, facilities located at the trailhead only. Flour arrows will guide your route and detailed maps available. If you arrive at the entrance kiosk before 9 am you will often get in for free. For driving directions click here.

Contact: Steve Smith
Email: [email protected]
Cell Phone: (925) 325-0805


Trail Notes:

Black Diamond Mines Regional Preserve offers over 65 miles of hiking trails on over 6000 acres of hills and valleys.


Trailhead Directions:
Click Here for a Map

From Highway 4, take exit #26A. Turn right on Somersville Rd and head south 1.4 miles. Continue straight through the entrance gate on Somersville, do not make any turns, following it all the way into the park, about 1.2 miles. Continue past the lower parking area for 1 mile to the end of the road, parking on the right.

Parking Fee: $5 Weekends

The trailhead information on this page was last updated
Thursday, November 30, 2017.

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