Castle Rock Trail

MODERATE 157 reviews
#8 of 62 trails in

Castle Rock Trail is a 5.9 mile lightly trafficked loop trail located near Walnut Creek, California that features beautiful wild flowers and is rated as moderate. The trail offers a number of activity options and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.

5.9 miles
1,010 feet

dogs on leash



mountain biking

nature trips

trail running



wild flowers


This trail promises a plethora of wildlife and nice views. It features part of the American Discovery trail and Coast to Crest trail. If you are feeling ambitious you can Summit Mt. Diablo Take Castle Rock Trail to any number of the connecting trails make a loop

2 months ago

I love this trail. It’s a nice shady trail. As another post says the trail can easily be extended. We did witness lots of wild life even late afternoon. Only minor issue was that it’s a horse trail so watch where you step as you go on the trail.

2 months ago

This is a great loop. We start at 7am and very few people is any at this time.

2 months 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.

3 months ago

I live 3 miles from this trailhead. Great short 3 mike hike. If you go early Morning like I get to do it’s great, very little people. Falcons nest. Red tail hawk nest. Stellar’s Jays, Quail, Turkeys, lots of birds. The Ranger is a super nice guy.We have even seen a Bobcat.

Just don’t go in the afternoon with the crowds of loud groups of people.

My go to short hike.

5 months ago

Lot of parking options, go down near the stables (not the school) for your best options. The start of the hike is pretty average - not much to look at other than Castle rock. Crossed a few very small streams but easy to navigate without getting wet. The back half of the hike is pretty amazing - green wide open space and some interesting rock formations. Few more Mountain bikers & cows on this section but still peaceful

7 months ago

FYI the Little Yosemite portion of the trail was marked with a sign that said no dogs.

8 months ago

Love this hike.

8 months ago

Interesting rock formations

10 months ago

Monday, August 14, 2017

falcons soaring over head. The beauty of Mt Diablo and the rolling hills set as the back drop of several trail choices. Many fun and low difficulty rating trails.

trail running
Saturday, June 17, 2017

Followed exact course and GPS said 1,300 ft elev. Also 6 miles. It was beautiful!! Mostly runnable hills except for a few sections. Deer, rabbits, vultures. Some sections torn up by rain and then livestock. Made it more technical than it used to be. If running, highly recommend trail shoes.

Monday, June 12, 2017

Lovely hike through Caste Rock today. It's been breezy and temperatures in the high 60s, low 70s. I saw a family of quail, with lots of little ones still, and a family of turkeys with about 6 youngsters. Water running in the creek still and wildflowers still out but reaching the end.

Wednesday, May 03, 2017

Hard, not moderate. The last part has an extremely sharp downgrade.

Saturday, April 15, 2017

This trail is mostly dog friendly, even with lots of off leash areas, but we did have to turn around and do a different loop as the end part is in Mt Diablo State Park where dogs aren't allowed

Monday, April 10, 2017

Wildflowers and interesting rock formations

Sunday, April 02, 2017

Some of the trails going outside the Castle Rock Recreational Area do not allow dogs, choose your loops wisely. Otherwise, great trails. Stage Road Trail has several small creeks to cross and good shade. Diablo Scenic Trail has amazing views, as well as Shell Ridge Trail and others.

Monday, March 20, 2017

Used to Hike this area as a kid before the area was all built up. I lived on Comistas and all the land behind us was cattle farming.

Saturday, March 18, 2017

Wonderful trail with lots of streams running through. Be prepared to cross multiple creeks that cut across the trail. Most streams had rocks you could easily jump on to cross. There is a section of the trail that allows dogs off leash.

Friday, March 17, 2017

Due to the rain we had, a lot of the smaller trails that start from the main trail are closed. However, it is so green! The greenest I've ever seen! And the creek that the trail runs along is moving and noisy!

Tuesday, February 28, 2017

Very muddy, cattle tracks left very big holes down the entire trail.

Monday, February 13, 2017

This is a great hike but you need to do it when it is completely dry. The trail crosses what is usually a creek but is completely flooded and requires getting wet to pass if it's been raining. We had to turn back and go through Buckeye Ravine. About 75% of the trail was mud even after 4 days of no rain. The views are great. There are really only two areas of steep incline but besides those, it's an easy hike.

Saturday, October 29, 2016

Great view. Didn't go till end. Walked less than 2 miles. We carried a stroller for our 1 year daughter and bike for our 6 year old. Some parts on the trail and rocky and steering the stroller is tough.

Wednesday, September 14, 2016

I parked at the trailhead and followed Stage Road, then onto the Little Yosemite Valley Trail. There was a steep climb. I turned right onto the Briones to Mt. Diablo Regional Trail. Followed the Mokelumne Coast to the Crest Trail, then hiked another steep climb onto the Shell Ridge Trail and went down to the Diablo Scenic Trail. The Diablo Scenic trail led me back to the parking lot. Total 6.3 miles with average 3.0 mph. I got a good workout.

trail running
Sunday, August 21, 2016

Nice run. Semi-shaded through the Stage road part. Bringing water is essential.

Tuesday, August 09, 2016

Good hike, not much shade so bring a lot of water in the Summer. Good climb in the beginning and the end, great to run in the middle.

Sunday, July 17, 2016

It's a good trail, it's not et all hard or moderate .. It's definitely easy one ... Only thing to remember is that castle rock area use to be close during January to July 31. We was .5 miles close to rock but then came back this time due to close area. But I am gonna redo it on first Saturday of August . The park opens on north gate at 7:30 am.

Wednesday, June 22, 2016

Great hike enjoyed the views. Decent elevation climb. All in all a fun hike. Will be back!

Saturday, April 02, 2016

I haven't been to Castle Rock in a long time. Great hike - almost 5 miles.

Thursday, December 31, 2015

We hiked out from Castle Rock Park up over Wall Point to Macedo Ranch and back. I had a great time.

Tuesday, October 16, 2012

Started on the Stage Road trail. At first thought the hike would be too easy. Then discovered the various trails that head up and down the shell ridge. Like others said you can go easy or push yourself. I continued into the state park and went up to Castle rock. Great views. On the way back to the car saw two deer. Very nice variety of sites and a good workout. Watch out for Poison Ivy, lots of it in the state park around the trail to castle rock and other low lined areas.

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