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 > East Bay Regional Park District | Healthy Parks Healthy People > Parks > Diablo Foothills Regional Park

Park Info

1700 Castle Rock Road
Walnut Creek, CA 94598
(Northern Staging Area)

Phone Numbers
Toll Free: 888-EBPARKS (888-327-2757), option 3, extension 4526

Local Weather

Panorama Panorama

View Trail Map
Download PDF Map 
Google Map to the Northern Staging Area
Google Map to the Southern Staging Area

Park Hours
Nov 1 - Feb 28
  7:30am - 7:00pm
Mar 1 - May 31
  7:30am - 8:00pm
Jun 1 - Oct 31
  7:30am - 9:00pm

Park Events
Click HERE for upcoming events

Parking Fee
No fee

Dog Fee
No fee

Grazing Information
Grazing in the Parks

Camping Reservations
No reservable campgrounds

Picnic Reservations
No facilities

Emergency Number

EBRPD Headquarters
1-888-EBPARKS or 1-888-327-2757

Park Update

Grazing Update
No cattle are currently grazing in Diablo Foothills.

Diablo Foothills Regional Park

Diablo Foothills Interpretive Park


Parts of all trails in Diablo Foothills park were affected by storm-related damage earlier this year due to the large amount of rainfall we had in a short period of time. Landslides, erosion, and large ruts from water runoff have caused damage to trails. Staff will be making repairs as equipment and time allow.  Please use caution while using the trails.  Park staff can be contacted at (510) 544-3085 for further information and/or questions.

Until further notice, the Castle Rock Trail, a single track trail at the intersection of Castle Rock Trail (fire road) and Stage Road Trail, is CLOSED  due to a large landslide. The trail is not safe to use. Use Castle Rock Trail (fire road) or Stage Road Trail to go around that section.

About The Park

Diablo Foothills is an imposing gateway to the beautiful parklands of Mt Diablo State Park and Walnut Creek Open Space. The Foothills 1,060 acres are valued for their striking geologic formations, their sweeping panoramas of the San Francisco Bay Region and the rural quality of the adjacent rolling grasslands.

Wildflower Photo Guide

> Diablo Foothills (2.5 Mb, 11 x 8.5, 19 pages Acrobat PDF)

Submit Your Photos to the EBRPD Photo Pool


Adjacent to Diablo Foothills is Castle Rock Recreation Area located in a scenic canyon along Pine Creek. The area is dominated by oak woodlands and prominent sandstone formations. Castle Rock has historically specialized in preparing picnic events for large groups of 300 or more people.

Park Features

Besides panoramic views of the mountain and its surroundings, Diablo Foothills' 1,060 acres contain interesting geologic features, beautiful wildflowers in season, and a variety of bird and animal life.

Vegetation varies from grassland and oak savannah on the hills to riparian and oak woodland in the valley. Pine Creek flows through Pine Canyon and is within the eastern portion of the Walnut Creek watershed, which drains 150 square miles of central Contra Costa County into San Francisco Bay.

Diverse habitat types support an equally diverse array of wildlife, including mule deer, bobcats, coyote, grey fox, long-tailed weasels, raccoons, gophers, rabbits and ground squirrels. Birds such as red-winged blackbirds, northern mockingbirds, scrub jay, California quail and brown towhees use the park for nesting and foraging habitat. Rock outcrops shelter garter and gopher snakes, western fence lizards, southern alligator lizards, tree frogs and California salamanders. The perennial pools of water in Pine Creek ensure the survival of green sunfish, mosquitofish and largemouth bass.

Park Activities

Diablo Foothills offers abundant open land for horseback riding, hiking, bicycling and nature study. There are no developed facilities in the park.

ADA accessibility iconPark Accessibility

The pathways within Castle Rock Recreation Area are wheelchair accessible. Other wheelchair accessible facilities in Castle Rock Recreation Area include a restroom and a drinking fountain, and an accessible lift into the pool.

To Reach The Park

  • Northern Staging Area: Exit I-680 at Ygnacio Valley Road in Walnut Creek and drive east. After about three miles turn right on Walnut Avenue. After about two miles turn right on Oak Grove Road, then bear right onto Castle Rock Road and follow it to the Orchard Staging Area on the right. Limited parking is available at the end of Castle Rock Road.
  • Southern Staging Area: Exit I-680 at Livorna Road. Head east about three miles to the Livorna Staging area located just west of Stonegate Drive in Alamo.

Click here for public transit information.

Trail Map

Click the map image below to see an enlarged version.

Diablo Foothills Regional Park Trail Map
Directions for navigating the enlarged map:
When the enlarged version of the map opens click on the 'Full Expand' icon in the lower right hand corner of the map to see the 'Actual Size' map.

'Full Expand' icon > Full Expand

When the 'Actual Size' map is viewable, you can 'Click-Hold and Drag' the mouse button (left on a PC) to reposition the map, as desired.

'Single-Click' on the 'Enlarged' or 'Actual Size' map to return to the park page.