Mount Diablo State Park
100-Mile Views from the Summit
On clear days, Mount Diablo offers views spanning over 100 miles–from the Sierra Nevada to the Farallon Islands. The 3,849-foot summit provides one of the most expansive panoramas in North America, with over 40 of California’s 58 counties visible.
Over 40 Trails
The park features an extensive trail network through diverse habitats supporting 600+ plant species and abundant wildlife.
| Trail | Distance | Difficulty | Highlights |
|---|---|---|---|
| Summit Trail (Juniper) | 1 mi RT | Easy | Quick summit access |
| Rock City | Varies | Easy-Moderate | Sandstone caves & formations |
| Mitchell Canyon | Multi-loop | Moderate | Spring wildflowers |
| Fire Interpretive Trail | 0.7 mi | Easy | Wheelchair accessible (1st half) |
🌸 Spring 2026 Superbloom Potential: After wet winter storms, Mount Diablo may experience spectacular wildflower displays. Peak bloom typically March-April.
Camping (Advance Reservations Required)
Three campgrounds: Juniper (36 sites, 3000ft elevation with views), Live Oak (22 sites), Junction (6 intimate sites). All require reservations via ReserveCalifornia.com up to 6 months ahead.
Important: Park gates close at sunset–arrive early or risk being locked in. Alcohol prohibited. No cell service at higher elevations.
Can I camp without a reservation?
No. All campsites require advance reservations. Walk-up availability is extremely rare, especially on weekends.
Are dogs allowed on trails?
No. Dogs are not permitted on trails, fire roads, or inside park buildings. They are allowed in developed areas (parking lots, campgrounds) on leash only.
