Explore the most popular 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.

I would recommend this trail because of amazing valley views. Trail is a bit steep but totally worth it. Make sure to carry 3-4 L of water. They have a well maintained visitor center at the summit that tells the history of the mountain and its formation.

3 days ago

Map is not up to date. Residents only parking on Regency dr began this month. Go to Mitchell Canyon to access the park. Tickets given out

Great trails with balance of sun and shade

We came at the wrong season when water all dries out.

6 days ago

Map is wrong. Clayton put up no parking signs except for about 10 spots. No more hiker parking on weekends on Regency dr. Start at Mitchell Canyon and support the park while having access to water and bathrooms

Parking at Regency is only about 10cars. Mitchell Canyon has bathrooms, water and you support the park i which needs your money so You can hike

great trail, shrubs provide enough cover. loved it. plenty of facilities at bottom and top.

no shade
6 days ago

Good hike. Wouldn’t do it again in full sun. Would start earlier or later in the afternoon. Took us 2.5 hours to reach the summit going about 2 miles/hr.

Great for peak training. Trail is thin and lots of poison oak so technu up!. Start early am and take water if you want to summit. You can park at end of Regency. You have to pay at Mitchell Canyon.

High quality hike if you want to get some elevation gain.

Great summer/fall trail. Bikes can go very fast on parts of the trail. I would avoid in the rainy season.

Pay for parking but bathrooms available at the parking lot

Beautiful, challenging trail!

Beautiful panoramic views from every lookout point on a clear day. Amazing to see the changes in topography on every side of the mountain. I'd recommend requesting the written directions from the park ranger at the park's entrance. For novice hikers, we weren't lead astray. We saw ground squirrels, deer, tiny lizards, and plenty of birds. Definitely was hot. Thanks to fellow forum members for recommending the 3L of H2O. We headed counterclockwise (northwest) around the mountain and had our climatic summit at the end! The summit includes plenty of picnic benches, clean bathrooms, and water fountains for your enjoyment.

Very pretty and amazing rock formations.

12 days ago

This is more of a hike. We had a group do a trail run here and there were very dangerous areas - extremely rocky and steep drop offs. Single track and rattler in the middle that wouldn’t budge for a while.

Extremely hot. I started at 9am and it was hot off the bat. Not much shade until you return. Intense climb going all the way up and some rock scrambling with a nice peaceful partially shaded fire trail on the way back. Lots of dragonflies and butterflies no big animals. Overall challenging especially with the heat but you feel very accomplished. Make sure to start early and bring LOTS of water. Fountain at the visitor center, the other parking lot at the top, the fountain is broken.

Reviews are right. Hard, great views.

Weekday hike. Never saw another hiker on the trail going up or down. Good workout but the mountain is really best for cyclists.

over grown
17 days ago

20 days ago

hard start with a smooth finish down Mitchell Rd. this was a great hike. It was a challenge but the pay off was gorgeous.

no shade
22 days ago

I’ve done this hike many times, but getting a late start (started @ 10:30a) made this hike difficult w/ temperature hitting 92 degrees. That being said, making it to the top & refilling our water bottles made us appreciate the climb. Lovely views & plenty of wild flowers to keep you company. Due to limited foliage to shade, I recommend constant application of SPF, along w/ bringing loads of water.

If you’re like me and like a reward at the end of your hike, do NOT do this counter clockwise! Save the summit for the end. Get the fire road out of the way first. Some very steep parts, make sure there’s decent tread on your boots. Awesome workout with great views.

23 days ago

Map is wrong. Need to start at Mitchell Canyon. This neighborhood has resident only parking and cars will be ticketed and towed. Mitchell Canyon is the official park entrance with water, bathrooms and maps

25 days ago

Great fun. Cows, dry creek beds (Aug), mixture of grades, nice views. Nice hike.

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