Gates open 8:00am and close at sunset. Visitors should plan to be in their vehicles by sunset and headed out to avoid being locked in.
Pilot car recommended
There are four entrances to Mount Diablo State Park: Mitchell Canyon Rd, North Gate Rd, Green Valley Rd (Macedo Ranch), and South Gate Rd. Please check under Brochures/Campground Map for more details
NORTH GATE ROAD CLOSURE
North Gate Road will be closed to vehicles, bicyclists, and pedestrians starting at 8:00 AM, from Friday, May 19 until work is completed October 2. This closure is for rebuilding a section of the road that was damaged as a result of heavy winter storms. We will provide updates about the progress of the project on a regular basis to the Mount Diablo State Park Facebook page or the Project's Website.
Please note there may be increased traffic on the roads that remain open in the park. Whether driving or riding your bike, please ensure you are travelling at a safe speed for you, wildlife, and fellow visitors.
SUNDAY, OCTOBER 1, 2023
40th Mount Diablo Challenge Cycling Event
Vehicle access to South Gate and Summit Roads will be closed from 8AM until 2PM for the bicycle event. In addition, North Gate Road is still closed for the slide repair project. Macedo Ranch and Mitchell Canyon will be open as usual. All trails and fire roads will be open for park visitors.
The Mount Diablo Challenge is an 11.2-mile, timed bike ride that climbs 3249 feet to the summit of Mount Diablo up South Gate Road. For more information please visit- www.mountdiablochallenge.org.
In case of emergency while visiting Mount Diablo State Park, please call 911.
Drivers and Cyclists:
Mount Diablo SP is a very popular park enjoyed by thousands of people each year with a variety of recreational interests. Cycling is one of the most popular activities and creates a potential safety hazard as drivers and cyclists need to use the limited access routes to enjoy their form of recreation.
Mount Diablo SP has installed 45 bike turnouts along South Gate Rd and North Gate Rd. These are to be used by cyclists to allow vehicles to pass safely.
Interested in supporting the installation of more bike turnouts? We currently have a fund raising campaign.
Summit Visitor Center Elevator
The elevator at the Summit Visitor Center is out of service until further notice. Repairs must be made in order to make the elevator reliable and safe for continued use.
Use of Model Aircraft / Drone / Unmanned Aircraft Systems (UAS)
Despite the fact that there has been a recent and dramatic growth in the popularity of model aircraft / drone and Unmanned Aircraft Systems (UAS) within the Bay Area, it has been determined that the use of these devices has numerous negative impacts to the special resources, park operations and the unique visitor experiences afforded to visitors at Mount Diablo State Park. Therefore, the use of model aircraft / drone and Unmanned Aircraft Systems (UAS) at Mount Diablo State Park is prohibited pursuant to District Superintendent's Order 660-16-038.
Facilities - Activities
Many visitors to Mount Diablo head straight for the Summit to enjoy the famous view. As mountains go, Mount Diablo isn't particularly tall - only 3,849 feet. However, it is surrounded by low, rolling hills and broad, flat valleys, so the view from the Summit is remarkable. When conditions are best, you can see almost 200 miles. Summer days are sometimes hazy, and the best viewing is often on the day after a winter storm. Then, you can look to the west, beyond the Golden Gate Bridge, to the Farallon Islands; southeast to the James Lick Observatory on Mount Hamilton at 4,213 feet elevation; south to Mount Loma Prieta in the Santa Cruz Mountains at 3,791 feet elevation, north to Mount Saint Helena in the Coast Range at 4,344 feet elevation, and still farther north to Lassen Peak in the Cascades at 10,466 feet. North and east of Mount Diablo the San Joaquin and Sacramento Rivers meet to form the twisting waterways of the Delta. To the east beyond California's great central valley, the crest of the Sierra Nevada seems to float in space. All in all, you can see over 8,539 square miles and parts of 40 of California's 58 counties from the Summit of Mount Diablo.
Note that all plants and wildlife within the park are protected. Collecting or destroying anything in the park, including mushrooms, is prohibited.
Summit Visitor Center - Open Daily 10:00AM - 4:00PM
The Visitor Center is located in the historic stone building atop Mount Diablo's highest peak. The tower was constructed during the late 1930's of fossiliferous sandstone blocks quarried in the park. The Visitor Center highlights the cultural and natural history of the park.
Impressive exhibits chronicle the history of the mountain and capture its majesty. A rock wall with instructional video examines the geological forces which created the mountain. A diorama, complete with sound, offers an overview of the park's ecosystems, and its cultural history. A model of the mountain acquaints visitors with important park locations. Splendid artwork and photographs enhance the visitor's experience. A gift shop and audio-visual room are also located in the building.
Accessible parking and ground level entry are provided and a generally accessible restroom is available inside the Visitor Center for use by persons with mobility disabilities. Additional non-compliant restrooms are located outside of the Visitor Center. The elevator at the Summit Visitor Center is out of service until further notice. Repairs must be made in order to make the elevator reliable and safe for continued use.
From this vantage point visitors enjoy one of the finest views in the world. On the walk up the circular stairway to the observation deck, visitors are treated to a look at ancient marine fossils embedded in the sandstone walls of the Summit Building. In the rotunda they are reminded of Mount Diablo's importance as a survey point. Above the rotunda is a beacon, historically important to aviators and now lighted on December 7 in memory of those who lost their lives at Pearl Harbor.
Explore Rock City
Located off of South Gate Road approximately one mile north of South Gate Kiosk. Features include the Wind Caves, Elephant Rock, Sentinel Rock, Artist Point and Fossil Ridge. Native American grinding rocks are located near Grotto. A great place to picnic.
Make a trip to the Mitchell Canyon Staging Area
Located on the north side of the mountain, Mitchell Canyon is accessed by taking Ygnacio Valley Road to Clayton Road to Mitchell Canyon Road. A number of trails take off from Mitchell Canyon that range from easy to difficult. A small visitor center is located here, open on weekends and holidays. The Mitchell Canyon area is noted for its wildflower displays during spring.
Diablo Valley Overlook
From here near Juniper Campground, 2,900 feet above sea level, you can see the Golden Gate Bridge.
Fires are a continuing threat at Mount Diablo State Park. Weather conditions may restrict smoking, prohibit fires or even close the park during periods of extreme fire danger. See park staff for specific information. Fires are only allowed in the park's barbecues or in your portable camp stove. Collection of firewood is prohibited in the park.
Do you have feedback for Mount Diablo State Park? Questions? Suggestions? Report a non-emergency (tree down, broken park feature, etc.)? Tell us about your experience? Send an e-mail to Feedback.MountDiablo@parks.ca.gov and we will respond as soon as possible to your e-mail.