About Mount Diablo State Park (South Gate Entrance)
Mount Diablo's South Gate entrance in Blackhawk puts you closest to the wind caves and rock formations that make this 20,000-acre park special. The trails here range from easy nature walks to challenging climbs toward the summit, where panoramic views stretch across the entire Bay Area on clear days. Dogs welcome on-leash, and the parking area rarely fills completely like the main entrance does.
Dedicated as California's state park in 1921, Mount Diablo offers something for hikers, cyclists, and equestrians across its diverse terrain. The historic stone Summit Visitor Center, built by the Civilian Conservation Corps in the 1930s, sits at the top—figure several hours for the full climb from this entrance. Spring wildflower season draws crowds, but any time of year delivers that peaceful escape from suburban Blackhawk below.
Gates open daily at 8:00 AM and close strictly at sunset. Entry is $10 per vehicle. Senior rates ($5) and free entry for children 15 and under, with a paying adult, may apply.