Black Diamond Mines Regional Preserve image

Black Diamond Mines Regional Preserve

Tourist attraction Park

One of the Best Places To Visits in Contra Costa County


Address

5175 Somersville Rd, Antioch, CA 94509

Website

www.ebparks.org

Contact

(510) 544-2750

Rating on Google Maps

4.70 (1.3K reviews)

Open on Google Maps

Working Hours

  • Saturday: 8 AM to 8 PM
  • Sunday: 8 AM to 8 PM
  • Monday: 8 AM to 8 PM
  • Tuesday: 8 AM to 8 PM
  • Wednesday: 8 AM to 8 PM
  • Thursday: 8 AM to 8 PM
  • Friday: 8 AM to 8 PM

Featured Reviews


Frequently mentioned in reviews: trails (24) hike (14) park (14) time (10) trail (10) plenty (8) hiking (8) beautiful (8) area (7) cows (7)
Reviews are sorted by relevance, prioritizing the most helpful and insightful feedback at the top for easier reference.
  • 5/5 Rico T. 1 year ago on Google
    Honestly, this is in my top few favorite parks in the East Bay. It is quiet, clean, and the rangers are very helpful. I think I have been visiting here for close to 25 years, and it has improved so much over that time. Absolutely love it.
    11 people found this review helpful 👍

  • 4/5 Glow 5 months ago on Google • 201 reviews
    it’s a nice hike with a few spots of pretty fall colors during the season. There were plenty of hiking trails and a nice hike around the lake. Good park for children to spend time outside that has plenty of park benches. Some trails had alot of cow dung.
    3 people found this review helpful 👍

  • 4/5 Mich R. 2 years ago on Google
    Decently marked and maintained trails. Ample parking with multiple lots. Views are pretty good, stretching from the delta to the north and Mt. Diablo to the southwest. Nice rolling hills with sporadic foliage. Some parts shaded but mostly exposed. Great for spring/winter hikes, during which you may catch flower blooms.
    7 people found this review helpful 👍

  • 5/5 Brian S. 1 year ago on Google • 58 reviews
    Just a couple of miles off the Highway 4 Freeway and you're in beautiful remote hillside country almost unchanged sine the days of the Black Diamond mining. Very nice picnic areas and hiking trails. Old Cherry Hill Cemetery is a short but semi-steep hike on well marked path/road
    5 people found this review helpful 👍

  • 4/5 Ashley T. 1 year ago on Google • 37 reviews
    We took the tour as a group and hiked afterwards. Our guide was absolutely amazing and personable. They were very informative but made it interactive and engaging for everyone. Unfortunately the tour distance is still pretty short as they work on restoring the tunnels, but hopefully they will have that completed in 2024. The trails and views are beautiful and I highly recommend trekking out to this nearby gem.
    5 people found this review helpful 👍

  • 5/5 Sandra J. 2 years ago on Google
    Lovely, scenic hiking trails. Spent over 3-hours exploring various trails and reading about the rich history of this area. Glad we walked up to the cemetery and talked with the Naturalist. We learned about some of the colorful family stories. Can't wait for the mines to open up for tours! Next time I'd like to bring a picnic and spend the day. It really was that amazing.
    4 people found this review helpful 👍

  • 5/5 Laura “BehaviorMomma” M. 2 years ago on Google
    🏞️ This EBRPD is picturesque hiking at it's best -- and a great spot to let the kids' energy out... 😜 Let's be honest, that's why most parents go, correct? Plenty of small hills to let the kids explore safely without being took far, not overly crowded, bathrooms at trailheads (hubs said it's the cleanest park porta-potty he's ever used!), rubbing water at trailheads (bring your own bottles), trails well-maintained and clearly marked, and it seemed like dogs were allowed in leashes! If there's any wind in the area, take a windbreaker on a hike with you -- or prepare for cold, whiny kids 😣🥶 Going on a weekday, we didn't have to pay to park, but in weekends it's apparently $5. Have to say, go when it's green (spring!)🏞️🌱💚 -- gorgeous! Hiked up to the cemetery 🪦. We were told there were poppies and waist-high mustard plants all over, but unfortunately never did see those on this trip... hopefully next time! (If you know where they are, let me know!) Excellent spot to tour and teach the kids how good they got it -- 8 year olds used to mine coal here.⛏️ For those not up to hiking, just the views on the drive in are excellent -- entrance to trailhead is handicap accessible with plenty to explore. Back in 2011 toured the mining area, but don't have pics -- remember enjoying it! ** A little history, Black Diamond is coal!
    4 people found this review helpful 👍

  • 1/5 Haley W. 2 months ago on Google • 6 reviews New
    tl;dr: for those looking to hike the extensive trails here, be prepared to step in cow poop, deal with destroyed trails from the herds, and circumnavigate cows displaying aggressive behavior. Priority at this park appears to be cows > people. Full review: For years I have recommended Black Diamond Mines as my favorite of the EBRPD parks. Unfortunately leadership at this park has apparently decided to prioritize cows over people of late, and appears to be more "publicly subsidized ranch land" than public resource. (Before accusing me of hyperbole, a note that one of the few other hikers I encountered had been driven to carrying a fake cattle prod with him because of the number of times he's encountered aggressive cattle.) For context, I usually do an 8.5-10 mile loop, so this does not refer to the mine tours or more developed areas. When I visited in late January after a week + without rain, I found that cows lined the trails for nearly the entirety of my 8+ mile hike, and that three times I needed to adjust my trail choice to accommodate either "ornery bulls" as they were described by a fellow hiker, or cows that were anxious of me being near their calves and didn't back down as I called to them/approached. Although the park is supposedly "dogs off-leash", I needed to keep mine on for the entirety of the hike because of the restrictrictions on dogs around livestock. Not only was the presence of the cows themselves disruptive, but they had torn up the trails to the point that they were nearly impassible, and if I weren't already 4+ miles into my hike, I would have turned around to avoid them. Between trying not to roll my ankle in their hoof prints, and the futility of avoiding stepping in cow poop, it was a long way from being a restful communion with nature and appreciation of the park. (Attached pictures from different sections of trail, as well as a warning on what your shoes may look like after your visit.) If the park system is so keen on prioritizing grazing in the parks, it would be great to either mark destroyed trails as "closed", or do what Walnut Creek Open Space has previously done and put electric fencing along the trails to keep the cows from destroying them while allowing people to still access the land. I'm not against the multi-use nature of the parks, but please don't call something a public park when in reality it's publicly accessible ranch land.
    3 people found this review helpful 👍

  • 5/5 Sandra K. 2 years ago on Google
    Beautiful green rolling hills during springtime. Literally a Microsoft wallpaper, but in real life! Kiosk was closed when I visited, according to website they’re “seasonally open” so not sure when they start collecting fees. Took advantage of that fact and we enjoyed an amazing hike with views of Mt Diablo, the delta, and surrounding hills. Beautiful wildflowers everywhere! Dog friendly as well, our dogs enjoyed the hike off leash.
    3 people found this review helpful 👍

  • 5/5 Gary A. 1 year ago on Google
    Great hiking opportunities! My friends and I were very impressed with the trails and historical sights.
    3 people found this review helpful 👍

  • 5/5 Astro Logical L. 1 year ago on Google
    One of the most underrated parks in our area. We went for the Coal Mine Tour and a hike. All had an excellent time as always!
    3 people found this review helpful 👍

  • 5/5 Mai Ngan L. 1 year ago on Google
    I visit late january 2023, after a lot of rainfall earlier in the month. The grass is in perfect shade of green. Green grass cover all mountain. Such an eye treatment. Hiking trail is plenty and safe.
    3 people found this review helpful 👍

  • 5/5 Suma T. 1 year ago on Google
    It's very pretty now coz of all the green carpet. Loved the trails . Not a big parking space but was half empty when we got there by afternoon on a cloudy day. Not sure how crowded it would get on a good shiny day. Lovely trails and well marked. Love to go back there anytime!
    3 people found this review helpful 👍

  • 4/5 Praneet R. 2 years ago on Google
    Had a great time at this trail. Overall it’s not a very exciting and picturesque trail. No stream and not much trees. Round valley is a better trail.
    3 people found this review helpful 👍

  • 5/5 Madison V. 4 months ago on Google • 26 reviews
    It was a lovely trail and a very cool underground mining system! The information center was in the tunnels.
    2 people found this review helpful 👍

  • 5/5 Steve L. 11 months ago on Google
    Lots of trails to explore. The mine tour is worth it. Make a reservation.
    2 people found this review helpful 👍

  • 4/5 Bartholomew R. 2 years ago on Google
    A really nice park outside of Antioch featuring beautiful hills, canyons, and ridges. My favorite trails were Ridge Trail, Coal Canyon, and Black diamond. If you come here in the summer, be sure to bring plenty of water!
    2 people found this review helpful 👍

  • 5/5 Merci F. 2 months ago on Google • 5 reviews New
    February is a beautiful time of the year here. The green grass and blue skies give you that nature fix! The energy is right and makes for a great hike. Plus you gotta love the urban legend of this area... Gravity hill and the white witch!!! Must visit if in the area...
    1 person found this review helpful 👍

  • 4/5 Lee R. 8 months ago on Google
    Easy going trails but very little shade! Bring sunscreen and plenty of water!
    1 person found this review helpful 👍

  • 4/5 nicnac242 7 months ago on Google • 34 reviews
    My 8 and 9 year old completed the hike, it wasn't easy though. They did some rock climbing and enjoyed the views. There should be a sign stating clearly where to exit and enter the trails, we were right around a corner from the stairs that lead down and out but thought we were lost. We ran into our friends who showed us the way down. We started from the first long trail going up from the road/ parking lot so we were thrown off where it ended when we got to the other side/end. I had only been on this trail once before but started last time where we ended the hike this time. now I know where to go but for your first time, it can seem like you're off track of its not clearly marked

  • 5/5 Scott D. 1 year ago on Google
    Really nice and very clean!! EBRPD staff were SUPER NICE and very helpful. Lots of parking, picnic tables in the shade, very clean restrooms and well managed trails. Looking forward to more trips here.

  • 5/5 Mike R. 1 year ago on Google
    This former cole mining region is now a beautiful east bay regional park. There are miles of open space hiking trails, some great canyons to explore and spectacular views out to the bay. The former townships are gone but there is plenty of evidence of mining and a below ground tour of one of the mines. Picnic grounds and restrooms available, bring plenty of drinking water and sunscreen.

  • 5/5 Alex 1 year ago on Google
    Aside from a nice selection of trails (which are gorgeous in the spring, but maybe a little too hot and dry in the summer and early autumn), there is a really cool mine with a welcome center and guided tours.

  • 5/5 Emilio A. 2 months ago on Google • 2 reviews New
    This place is really amazing, I like to come here. I remember it like it was yesterday, I was in 3rd grade on a field trip here. The hiking trail was really a sight. We crossed grassy hills, areas with dense foliage, not to mention all the important, historically significant mines and the cemetery. They have a strange, interesting, surreal feeling to them, not in in a bad way of course, but there's just a certain mystery to them that I can't put my finger on. The cemetery has lots of interesting historic facts, and some pretty creepy legends. Even now, when I come with my family, I still discover new, beautiful areas. Let me tell you about my favorite one. I came here with the family once, and I said we should go check out this one side of the park. We saw what could possibly be a mountain lion den (yes there are mountain lions here but I haven't encountered one in all my trips here, but still be cautious), we struggled up slippery mossy rocks, but eventually, we stumbled across a beautiful, eye catching little clearing amongst the woods. It looks like it could be a background of those new-fangled telephones the kiddos have nowadays. There are branches that give shade but also leave room for light to make this place more beautiful, and there is also moss everywhere, with boulders covered in them. Imagine an area in the Andes mountains, that's what lies in that clearing. I also spotted some claw marks on a tree, so maybe the mountain lions have good taste lol (be careful). Another place I like is atop a hill that might as well be a mini mountain. It has boulders but with red moss, and overlooks the rest of the park. I recommend this place heavily, and it gives me great nostalgia (watch out for cow pies!).


Call (510) 544-2750 Open on Google Maps

Amenities


  • Pets
    • ✓️ Dogs allowed
  • Activities
    • ✓️ Hiking
  • Accessibility
    • ✓️ Wheelchair accessible entrance
    • ✓️ Wheelchair accessible parking lot

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