Explore the most popular trail running trails in Mount Diablo State Park with hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers and nature lovers like you.

hiking
2 days ago

Beautiful loop through a fairly diverse landscape, along rock formations, creeks, meadows, cow pasture, forest. Easy to extend the hike if you're motivated, we made it an 8 mile loop.

loved this trail! nice changes in elevation, beautiful views and waterfalls. there was a lot to look at and appreciate and it was a nice length that felt challenging but doable.

The return loop was pretty steep and was very sliding, Going to the summit trail was good.

hiking
3 days ago

It’s a beautiful trail, tons of wild flowers and small animals. Unfortunately one part of the trail is full of ticks!

hiking
4 days ago

Hiking on Diablo is one of the biggest reasons why we all over-pay in rent and mortgages. If you’re not making use of such a beautiful mountain, that’s in your backyard, you may as well move to a different state. This is an amazing and challenging hike with phenomenal views, beautiful wildflowers, interesting animals, shade, sun, creeks and lovely smelling vegetation. This hike is full value and I can’t wait to hike it in a wet season to get a different experience. I would give it 4.5 stars only because a couple of areas have poison oak growing over the trail. Not a big deal if you wash everything as soon as you get home, but it slowed my pace and took my eyes off the scenery in some areas. 6 hours moving- 7 hours total.

While this is a lovely trail, but the parking access has been badly abused. Users have been very disrespectful to the neighborhood. Please access this trail from the Mitchell Canyon Gate and parking lot. The trash left behind, the blocking of driveways and numbers of cars are making it likely that permit only parking will be implemented.

Beautiful hike! Much of it was shaded, and the terrain wasn’t too difficult.

Great hike! The ascent is steep but manageable mostly on fire roads. The descent is mostly single track.

Thanks to Mike Siders‘ review, I decided to go on this great hike, as I’m in the area for a business trip. I’m glad I did this hike - a great experience in such a beautiful area.

Great long hike. Don’t forget to get a pen abc $6 cash with you. You need to fill a form. They don’t have a pen there. Definitely do clockwise, start early to beat the heat. Gets pretty hot and lot of the trail is exposed. Carry lot of water. Ascending gets very slippery sometimes. Wear good shoes; and a hiking stick is recommended. The wildflowers are in full bloom and some are very fragrant. The water up at the summit is not bad. Also the visitor’s center is cool and they have a little walk through museum, which is cute. They also have water, cold drinks, ice cream for sale. On the way back is all fire roads after juniper campground. Cannot imagine doing it counter clockwise. Fun hike!!

Had a blast on the trail. It wasnt too hard and the trail is well marked and the people on the trail were friendly. Just be advised when you reach the summit you will be greeted by a parking lot full of non-hikers and tourists. Overall a good hike.

Nice short trail added to our Grand Loop hike. It was great weather and everything is still green and blooming.
Watch for poison Oak and tickets.
My tracks are weak due to my driod acting up.

worth the afford.

Just did this trail this morning, it’s tough! Definitely recommend wearing cleated type shoes or boots, jeans some parts of the trail or covered with bush. Bring plenty of water and prepare for an uphill battle. Once you get to the top it’s definitely worth the views, peace and serenity.

I did this hike. it was awesome ha ha I did it all the way up. joe Smith on 4-28-18

hiking
19 days ago

ALTERNATE ROUTE TO MOUNT DIABLO SUMMIT. Start at the visitor center then go counter clockwise on Mitchell Canyon Road. At the fork in the road take Meridian Ranch Road. From Meridian Ranch Road take Deer Flat Road towards the Juniper Campground. At the Juniper Campground take the Juniper Trail to the lower summit parking lot. Take the Summit Trail at the other end of the parking lot to reach the Mount Diablo Summit. Take the same route back to the visitor center to complete the hike. Hike is approximately 14 miles and took me 6 hours to complete.

The Mount Diablo Park representatives are extremely friendly and helpful. I encountered one while on the trail who made sure I knew where I was going and that I had enough water. I needed about 3 liters of water mixed with Gatorade to stay properly hydrated. I encountered two sun basking rattlesnakes in the middle of the trail during the warm part of the day so beware. The scenery is beautiful with lush vegetation and absolutely incredible views of The Bay. A unique and memorable hiking experience.

Counterclockwise. This was a very difficult trail. Not because of the length or up and downs. Bit because of the “slipperiness” of the trail. The down hills especially had to be traversed with baby steps because if this. And lots of brush overhanging the trails not good for ticks and poison oak. $10 self service to get in. All day never saw a park employee. I will not be back and don’t suggest this trail, not much fun.

Definitively, do it clockwise. Really nice trail going up but be very careful as there is a lot of poison oak along the way. I saw rabbits, hummingbirds, lizards, deer, raccoon and even a snake! Going down is most of the time a smooth ride but the trail is not as nice, as it is very wide (fire road), but despite this it is very interesting as the scenery is different then going up. Took me 5:40hours without counting the breaks.

Fantastic hike today! I did it clockwise from Juniper Campground. There are some steep parts with loose gravel on dirt that I wouldn’t want to do going downhill, so I recommend clockwise.
There were so many gorgeous wildflowers! I also saw a coyote. I added on the spur trail to the summit, since I’d never been there.
There’s a lot of poison oak. Most of the trail is wide enough that it’s easily avoided, except for the Bald Ridge section. Wear pants and long sleeves! It goes up to shoulder height.
Most of the trail is exposed, and it felt warm even though it was under 60 degrees when I started. Wouldn’t want to do this on a hot day. I’ll definitely do it again, though!

21 days ago

So beautiful!! Bring a lot of water and go early. A lot of trails and mostly uphill. Walking stick would be useful. Watch for rattlesnakes we saw one on the trail and even saw a baby scorpion!

The creek was running pretty low after a dry week, but all of the flowers were blooming and it was a beautiful hike. Hiked on a sunday and were able to park on the street without a problem.

Nice hike. I think I would do it the other way around because Eagle Peak Trail has a lot of small rocks/talus for long stretches of trail that you can slip on.

Beautiful hike. Made it to the trail head (or dead end of a residential road) pretty late morning, but it was still cool enough out that we weren't boiling throughout the hike. Starts out quite mellow, would recommend doing clockwise/going left when you approach the split for the loop, contrary to how the app directs you. Despite the steep bits, little kids were still doing this trail so it's not terribly strenuous. Great views, overall would do it again!

Love this trail, a nice 6 mile loop.. next time I want to hike to the Summit!!

The counter clockwise route is a more scenic way to start the hike and it's the route I picked. There is a good amount of incline throughout the hike, but during the first half it seems to be broken up nicely. I didn't start to get tired until we started the incline at the falls loop. The falls incline got a little annoying, probably because I expected there to be very little left and there was still a bit left until you got midway in the falls loop. The trail also gets tighter on the falls loop and sections get steeper without much grip under your feet. A walking stick would be helpful on the waterfall loop, but if you aren't too clumsy and have decent shoes you will be okay without one, although I wished I had mine for that section. There were lots of cool wildflowers and the sound of the falls were nice probably because we went late April. It was a pleasant hike just go prepared. If you are out of shape I could imagine this is a hard hike. If you are somewhat active this is definitely a moderate/hard hike depending on the weather. You don't want to do this hike on a warm day in the afternoon. The waterfalls are nice, but dont expect anything spectacular. It's just nice to hear the sound of water and see the surrounding greenery.

hiking
24 days ago

Wow, this one is a doozy! I followed another review and used Juniper Trail and Meridian Ridge Trail instead of back tracking Not sure if this made it easier or harder but my total distance was just about the same, 16.2 miles and slightly more elevation. I wanted to do more of a loop and was happy about the decision. This is a solid hike but it can get windy on the peaks which can be a bit brutal if you aren't prepared for that. I was actually surprised this hike didn't end up being harder, overall it was super enjoyable but it's definitely a long hike, we finished in a little over 7 hours of moving time. If you want an all day hike and to see all Mt Diablo has to offer, highly recommend this one!

Good hike! Nice added hike to the Grand Loop Hike.
Nice cool day and things were green and blooming.

This was a great hike and a great time of year to do it.
Everything was still green and blooming. The marine layer kept it cool today.
We did the hike counter clockwise and added the Juniper and Summit Trail loop to it.

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