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    Black Diamond Trail

    4.0 (1 review)

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    5 years ago

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    Mount Diablo State Park

    Mount Diablo State Park

    4.3
    (385 reviews)
    1.7 mi

    We absolutely love hiking this magnificent mountain and the surrounding areas as much as we can…read more There are several trails to trek. I'm not going to lie, most if not all are pretty challenging especially the Mitchell Creek to Diablo Summit. That is a 14 mile hike and it will kick your butt for sure. I must be crazy because I love getting my butt kicked by this mountain LOL. We keep coming back for more. The elevation is no joke as there are numerous inclines and declines. Theres hardly any shade so make sure you sublnscreen up and stay hydrated. The views are absolutely stunning. Strenuous hike but the views are worth every ache and pain. Enjoy the views. There is parking but there's a $6 dollar fee (not bad). Parking lot is open at 8am until sunset. There are bathrooms. The ladies room is clean for the most part. As clean as it's gonna get at a park. I absolutely recommend this mountain if you are looking for some challenging trails to hike.

    This by far was one of the hardest trails I've ever hiked. The incline is insane! The entire trail…read morewas uphill, I was breathless. But the views the entire time made me just as choked up. It costs $10 to get into the park, gates open at 8AM. There's a 12 mile hike, loops the site. And an 8 mile hike to the Summit (round trip). At the top there's a museum inside which has an exhibit and gift shop. I got a cute T-shirt for $18, they also had a showing of the history behind the summit and how it came to be. We saw a couple deers, baby coyote, various species of birds, lizards, and butterflies. During this time of year, majority of the trail was dead. I rarely saw any hikers, mostly bikers! Most visitors drove up to the summit for pictures and views. The hardest part was definitely going up to the summit! We cut our time by half on the way back down. It was steep, so we temple ran our way down. Really fun! I highly recommend going early in the morning or later in the afternoon to avoid the heat. Not a beginner friendly hike! Challenging. Trails not shaded. Park rangers are very friendly. Maps are also provided at entrance.

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    Mount Diablo State Park
    Mount Diablo State Park
    G4 storm brought the northern lights to Mitchell Canyon

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    G4 storm brought the northern lights to Mitchell Canyon
    Mt Diablo Summit

    Mt Diablo Summit

    4.3
    (88 reviews)
    4.3 mi

    This has been on my want to hike list for a long time and I finally got to do it on a perfect day…read more The weather was great, overcast and cool. We hiked it so fast and the views were spectacular. I can't wait to hike this in the spring with all the flowers in bloom. There are so many surrounding trails and I want to do them all! Lots of bathrooms throughout the trail. There is a visitor center at the top which you can drive to also. Please come and creat your own adventure.

    My God-father lives nearby, and he thought this would be a nice little distraction from the…read morebustling cities below. He was right. The drive up was intense. It's been a while since I drove roads similar to this, so it wasn't too bad, up. Hopefully down is OK too. There is a small entry fee (per car), but also a senior discount. So we only had time for the Summit. There are more Yelp! listings for other parts of the park. OK, so I was not prepared for the breathtaking views! It was a slightly hazy, or was it smoggy, day... But the views were still fantastic! If the views were not enough, there is a visitors' center in the light tower at the summit. Inside is lots of information, a Rangers' Station, and several informative and/or interactive displays. And there is camping in Mt Diablo too! To make things even more interesting, we took a different route down. I don't like backtracking, so this was a bonus... And i wasn't too bad.

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    There's a stairway up to the museum. If you are looking for the restrooms, they are in the opposite direction across the parking lot.
    There's a stairway up to the museum. If you are looking for the restrooms, they are in the opposite direction across the parking lot.
    My Godfather and Thuy
    My Godfather and Thuy
    Mt Diablo Summit

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    Black Diamond Mines Regional Preserve

    Black Diamond Mines Regional Preserve

    4.7
    (207 reviews)
    3.9 mi

    We walked a couple of trails, explored the old coal mine, and checked out the cemetery...really…read morefascinating to see how far back those tunnels inside the caves go. The visitor center had a ton of great information and history.

    Exploring the California State Parks list online a number of years ago, I liked the description and…read moremap of Black Diamond Mines Regional Preserve. It was neat in that there were historical building(s), a cemetery, and different parts of mines in addition to the natural landscape, plants, and animals to observe. I visited a few different times in 2018 plus or minus a year. One time I brought my friend Jinsol along and another time I brought family (my mom and dad). The park volunteers/workers were friendly when we encountered them. We appreciated the map(s) of the park, it helped with exploring. Some sites were more readily identifiable than others. My mom had difficulty on some of the steeper trails, though my dad faired well. Some parts of the mines had information displayed though were not open on my visits. One of my visits was during a heat wave, while the remainder were during relatively average weather conditions. Shade was sparse, though present, during the heat wave. Even in the shade however, the heat seemed to spread. On a different occasion I slipped and fell on a pathway that had a small section that was temporarily dominantly mud. A place requiring my full attention for traversing the trail system.

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    Black Diamond Mines Regional Preserve
    Black Diamond Mines Regional Preserve
    Black Diamond Mines Regional Preserve

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    Black Diamond Trail - hiking - Updated August 2026

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