State park

Mount Diablo State Park

Mount Diablo State Park is a state park in Contra Costa County, California. Day use costs $10.00 per vehicle. Hours: Gates open 8:00am and close at sunset. Visitors should plan to be in their vehicles by sunset and headed out to avoid be.

Mount Diablo State Park
Photo: Aduensing, CC BY-SA 4.0

Mount Diablo State Park map

Mount Diablo State Park boundary from USGS PAD-US or the managing agency, simplified for display. Not for navigation or legal boundaries.

View larger map Open in Google Maps Directions

Fire restrictions

Fire restriction orders for this unit are not tracked here yet. Restrictions change with the season, so check the current orders before any campfire, stove or target shooting.

Common questions

Mount Diablo State Park has 2 developed campgrounds. Sites can be reserved in advance.
Entry to Mount Diablo State Park costs $10.00 per vehicle. Hours: Gates open 8:00am and close at sunset. Visitors should plan to be in their vehicles by sunset and headed out to avoid be.
No, day use at Mount Diablo State Park does not need a reservation; pay the entry fee on arrival.
Visitor Center - Open Daily 10:00AM - 4:00PM The Visitor Center is located in the historic stone building atop Mount Diablo's highest peak (as of September 28, 2026).
Yes, dogs are allowed at Mount Diablo State Park.

Before you go

Day use needs no reservation; pay the entry fee on arrival.

Camping at Mount Diablo State Park

Mount Diablo State Park has 2 developed campgrounds. Sites can be reserved in advance.

Reserve a site with the park's booking system

Trails

  • Summit Trail (moderate) Primary route to the summit area and visitor center
  • Mary Bowerman Trail (0.22 mi one way, easy) Paved ADA route near the summit to Ransom Point overlook
  • Eagle Peak Trail (strenuous) Ridgetop hike to Eagle Peak viewpoints
  • North Peak Trail (strenuous) From Devil's Elbow on Summit Road to Prospector's Gap
  • Juniper Trail (moderate) Links Juniper Campground toward the lower summit parking area

What to see

  • Historic site Summit Building and beacon Historic visitor center and Eye of Diablo beacon atop the peak
  • Rock formation Rock City Sandstone caves and Sentinel Rock on the south side of the mountain
  • Feature Trail Through Time Geology interpretive path accessible from Rock City