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    Mount Diablo State Park

    4.3 (385 reviews)
    Open 8:00 am - 6:00 pm
    Updated over 3 months ago

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    Bella M.

    We absolutely love hiking this magnificent mountain and the surrounding areas as much as we can. 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.

    Looking back ti SF
    David G.

    When my roommate from Stanford Business school invited me to his parents ash release ceremony on Mt Diablo .... I did not hesitate. To be honest I am a 5th generation San Franciscan and have been all over the state but never visited Diablo. Compared to Colorado it is sort of nothing special except for the vistas to the east bay, Marin, and good ol San Fran Crisco. A good hike if you live here....camping does not look appealing. Agro bicyclists ( like what else is new in the Bay Area?). Visit once and done! Beautiful ceremony though

    Polina L.

    Hiking to Mount Diablo. We were on our way back from Sacramento to Millbrae and my husband, knowing how much I love hiking, made a turn and took me to this place. A beautiful view, very green after a long period of rain. We climbed higher and higher and the view became more and more amazing and enchanting. I loved the cows walking peacefully through the hills, loved the green stone and the long history of Mount Diablo, related to the formation of the volcano and the Spanish conquistadors who gave it the name "The Devil's Thicket". So, if you're into nature, this is a good place to visit. However, you should know that you'll pay $10 if you go by car, which, frankly, is worth the money!

    Ziad A.

    Mt Diablo I barely go but because it used to be very dry. But the last time I went recently because of the recent snowfall and so when I reached the top, there was active snowfall. The views were amazing on the way back down from eagle point to the Mitchell rock parking lot. It is a great place but get there early for sure

    Erich L.

    Beautiful park to go hiking. I went to the north entrance on Mitchell road and took the red rock trail. You can see The Valley from the top. Didn't see any tarantulas or snakes this time. I'll definitely go back. The volunteers are very friendly and helpful. Make sure you bring cash for parking it is all self serve. You fill out a form and deposit the money in an envelope. $6 per car.

    Daw M.

    First timers BEWARE! Bikers! $10 vehicle fee. But knowing this coming to the park made it a better experience. I was not annoyed but actually in awe by all these bikers going up! Jeez! What athletes!! Wonderful little hike and the incline is pretty strenuous. Bring lots of water and hiking poles! A plethora of picnic areas. Views of the valley are nice, but if you're looking for an extravagant view you won't find it here. Only comes for the challenges of the trails.

    Day of hiking
    Jonnita W.

    Really a great spot to get out and just do your nature Walker nature hike. There are trails that start anywhere from three hours and go all the way up to a full eight hour. Definitely get there as soon as they open if you're gonna do anything longer than three hours, especially get the full effects and benefits of what the trails have to offer and possibly making it to the top. There is so much life and beautiful visions on the trails. I even found a yellow mustard plant. Then we came across snake skin shed. Definitely always make sure to bring yourself water and snacks for the trail, there are a couple of picnic tables at the entrance behind the visitor center. During this time of the year the location is, a moderate fire season. There is an entrance fee based off of de use. The visitor center has a lot of interesting artifacts with what lives around the area or what used to live around the area. Walking these trails we seen a lot of spider holes or traps as you would call them. Lots of birds chirping a few creeks, even saw a succulent plant, popping out of a rock in the area. Also tarantula and tick season so be very careful when utilizing these trails

    Beauteful and very convenient place for BBQ! many bees, but it's wild world I recommend it, not very hot, fresh air, clean places

    Sir Edmund Hillary "It is not the mountain we conquer, but ourselves."
    Amy C.

    Mount Diablo - 03.07.21 - Conquered. Hahaha... I've been wanting to hiked Mount Diablo since I heard about it from my former manager/crush during our hike at Mission Peak last year. Even though that didn't go anywhere, I did finally hike Mount Diablo yesterday with my two guy friends with one of them being fellow Yelper, Johnny W.! We all met up and parked at Rock City lot and hiked from there. The hike was fun with some shaded areas all through the hike unlike Mission Peak where there is no shade whatsoever. I truly do appreciate the shaded areas at this park. We climbed the Devil's Pulpit, and honestly, I was very scared, but I'm glad that I did it with the encouragement of my friends. Climbing down was alot scarier than climbing up for sure, but just be careful. The only restrooms there were Port-a-Potties which is pretty gross, but when you gotta go--you just gotta go. The park entrance fee is $10 which is okay. I'm a fan of free parking so I'm not a fan of having to pay, but it is what it is. I suppose people can park outside the pay station, but it's definitely a longer walk plus it's more dangerous walking with the cars driving. During the hike, I was feeling good. The only pain I felt was from the rocks because my sneakers doesn't have too much cushion so I definitely felt the rocks which were annoying. It took us 5 hours and 30 minutes to hike to and from with burning a total of 2,167 calories! Whoo hoo hell yes! I finally felt sore after getting out from sitting in my car when I got home. Ooh it was pretty painful because my knees, back, legs, and booty were hurting. But you know what... sore is sexy, babyyy. Hehe.. Would I do this hike again? Maybe if someone wants to go, I would do it again. But for now, once is enough for me. Haha.. going to find other parks to try out! :D

    PHOTO BY GENO T APPROX 2010
    Froggymc Y.

    A great place to get away and meditate and see the many counties at the top of the mountain rock city is a powerful place you can see and feel the power of the past

    2/21/2021:  HB Present from me to me~I get to go camping for my birthday-YAY!!!!  I'm in solitude.
    Shirley M. F.

    2/21/2021: HB to me, HB to me, HB to meeeeee~HB to ME~Yay! CA State Parks began allowing people making campground reservations as of MY BIRTHDAY, February 21, 2021! Seriously, I'm so stoked, so elated: I CAN ACTUALLY LEAVE MY HOUSE AND GO CAMPING NOW! Whoa~I was literally house-bound throughout 2020 except, leaving a few times during Fall 2020 visiting the American River. Now, I can legally go camping without feeling as if, I'm a criminal breaking CA STATE LAWS! Oh, happy day especially, when 2/21/2021 is my HB Present from me to me~I get to go camping for my birthday-YAY!!!! I discovered my campsite is in complete solitude . . . Campsite J26 is adjacent to the bathrooms but, the interior bathrooms and showers were locked, inaccessible to ALL CAMPERS; however, the CA State Park provided outhouses and portable sinks for washing your hands which is cool . . . BUT, nobody can use the showers, toilets or sinks inside the building due to the "H2O Shortage"~WAAAAAAAAH: What an egregious disappointment but, still-it's a cool birthday present, nonetheless.

    View from the top of Mount Diablo
    Jannine R.

    Everything about Mount Diablo State Park is beautiful! The trails, the views, Mother Nature at her finest!

    Hiking !!
    Kathryn Y.

    Hiking here can be very challenging if you are not ready. I have not hiked extensively here, but I have now hiked in different seasons. Summertime here is brutal and I recommend getting out early. On this recent hike my guy and I did the waterfall trail. I had done it a few summers ago mistakeningly in the middle of the day and nearly fainted from heatstroke. Not this time! We started at 9:30 am and ended at 1:30. 8.5 miles, yikes, amazingly beautiful and unique single lane trails. The waterfall trail is very challenging and fun at the same time. We went backwards, according to my hiking partner, and thus experienced most of the uphill first. There was a bit of water this time from the recent rains and snow on the top of Mt. Diablo, but, no excessive heat. The area was very green and a decent amount of flowers. Is it Spring yet? Upon exiting the waterfall trail we headed up to take the Back Creek trail down. Wear good shoes, bring water, and a charged camera to take photos. Lots of poison oak on surrounding the trail too, be careful. Parking was $6.00 on the day we went, although I notice the ohter reviews are stating $10.00, not sure why the discrepancy. I suppose it would be best to be prepared for the higher cost. Cheers and happy hiking.

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    2 years ago

    The view is not as expected. Btw the bathroom is full of different types of insects like nobody maintains it. The museum is fine tho.

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    Ask the Community - Mount Diablo State Park

    Are dogs allowed? Off leash or on leash?

    No dogs are allowed on Mt Diablo state park

    Is there any benches or picnic tables to rest at the top?

    April 13, 2025 Yes, indeed there are! Many people eat their lunches here!… Read more

    Good day! How's the driving going up to the summit/parking lot? Is it scary? Zigzag? Thanks in advance.

    It is very windy, especially from the Danville/Alamo entrance. Go slowly. I wouldn't necessarily say it's scary though. It's scenic and steadily winding uphill. You have to go slowly behind cyclists since you don't want to pass them where the road… Read more

    If I want to play snow how can I get to the area that has snow? Can I go by car?

    Snow falls on Mt. Diablo every few years. It didn't in 2021. February is the most typical month with snow, and even then,it lasts for only a few days. I've been there in the snow, and it's a matter of driving past the junction and going up toward… Read more

    Can you drive to the summit? If so how long is that drive and are there roads?

    https://www.parks.ca.gov/?page_id=517

    Does anyone know about how long it'll take to get to the very top with the best view?

    Hiking to the summit is a 4 hour trip up the hill. If you are driving it's safe the assume that you'll need at least two hours for a round trip. This includes the round trip drive to the summit/back and 48 stops to take pictures. Enjoy!

    Cna i bring a stroller?

    The trails are narrow and include a lot of traversing up and down steps. I wouldn't recommend a stroller for hiking. If you're visiting for a barbecue, you'll be by the main… Read more

    Is this a hike ok with kids ? 10 year old? If we stay on the trail, any chance of getting lost?

    The park features a lot of large boulders which have hand and feet holes carved out. It's impossible to walk by one without being tempted to climb up. They are pretty high up (15 feet or so) and some have sheer drop offs of 50+ feet on their far… Read more

    If you want to start a long hike early in the morning (say around 7 am), is it possible to get into the park before it opens?

    Only by foot.

    Is there a visitor center here?

    Yes. There is one at the base in the main parking lot, and another larger one near the top with a shop where you can purchase memorabilia.

    Any trails you would recommend for taking 3, 6, 8 year olds on?

    Rock City

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    Review Highlights - Mount Diablo State Park

    If you are looking for a unique place to hike or bring friends from out of town, I would highly recommend Mt.

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    Mt Diablo Summit - Stairs to the observation deck

    Mt Diablo Summit

    4.3(89 reviews)
    3.1 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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    Mt Diablo Summit - 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.

    Mt Diablo Summit - My Godfather and Thuy

    My Godfather and Thuy

    Mt Diablo Summit

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    Black Diamond Trail - Trail

    Black Diamond Trail

    4.0(1 review)
    1.7 mi

    COVID-19 precautions. Five-mile moderately difficult trail. Well-maintained and less traveled. Zen…read morebut same scenery. Free parking. See below for more info: COVID-19 precautions: Some people wear face masks. However, all we encountered were mindful of physical distancing and gave parties space. Five-mile moderately difficult trail: Black Diamond Trail is five miles roundtrip. In theory, you can go farther, but maybe not the best idea as there is a sign saying you cannot go past a certain point. The trail is moderate in difficultly as the way out is all uphill then balanced out with it being downhill on the return. Well-maintained and less traveled: Black Diamond Trail is well-maintained with no big rocks, just dirt and grass. A nice perk is that the trail is less traveled. We came across seven people during the hike, five bikers and two fellow hikers with dogs. As an extrovert, I truly appreciate hikes like Black Diamond which are not busy because I get to have some solo time with my thoughts. Zen but same scenery: Black Diamond Trail is zen and a great place to get some steps in and step away from the city. However, the scenery is the same for hike and consists of vegetation foothills and wildlife, i.e. much like Mission Peaks sanz the crowds. Free parking: Black Diamond Trail has free parking at the entrance. While there are seven parking spots, less cars may be able to park depending on how efficient other people are in parking.

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    Black Diamond Trail - Trail

    Trail

    Black Diamond Trail - Trail

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    Trail

    Black Diamond Mines Regional Preserve - Visitors Center

    Black Diamond Mines Regional Preserve

    4.7(208 reviews)
    5.3 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.

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

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    Mount Diablo State Park - parks - Updated June 2026

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