Diablo Summit Long Loop: Stage, Burma, Summit, and Wall Point

This is a very long and strenuous hike. Based on its distance of approximately 31.8 km (19.8 miles) and significant elevation gain, it typically takes around 10 hours to complete. However, your actual time may vary depending on your fitness level, pace, and how often you stop to enjoy the views.

No, this trail is classified as difficult and is not suitable for beginners. It involves substantial elevation changes, very steep grades (like the 'Burma Blast' section with a 28% grade), and varied, often challenging terrain. Hikers should have good fitness, sure-footedness, and experience with long, strenuous hikes.

The terrain is highly varied and demanding. You'll encounter steep, gravelly sections, narrow singletrack trails with encroaching brush (including poison oak), and fire roads. Loose rocks and scree are common on both ascents and descents. Expect uneven surfaces, rocks, and roots throughout the route, especially on trails leading to the summit and sections like Burma Road.

The views are a major highlight! The upper half of the loop offers striking panoramas of the Bay Area and Central Valley. On clear days, the summit provides expansive views extending over 100 miles in all directions, potentially reaching the Farallon Islands, the Sierra Nevada, Lassen Peak, and even Sentinel Dome in Yosemite National Park.

Yes, the loop passes by several notable points. You'll encounter unique rock formations like China Wall Sandstone Formation and areas formed by ancient submarine volcanic rock. Other highlights include Castle Rock with Birds, Castle Rock Recreation Area, Sandstone caves in Castle Rock formations, Pine Pond, and the Diablo Valley Overlook. The route also includes the summit of Wall Point.

Spring is often considered the best time, as it brings a profusion of wildflowers and generally milder temperatures. Fall can also be pleasant. Due to significant sun exposure on much of the route, it's crucial to avoid hiking during hot weather, especially in summer, to prevent heat exhaustion.

Mount Diablo State Park generally allows dogs on paved roads and in developed areas, but they are typically not allowed on most unpaved trails, including many sections of this long loop. Always check the latest regulations on the official Mount Diablo State Park website before bringing your dog.

Specific parking for this exact loop isn't detailed, as it combines multiple trails. However, access points for Mount Diablo State Park trails, such as those near the main entrance or various staging areas, would be your starting point. Parking within the state park usually requires a fee. Arriving early, especially on weekends, is advisable to secure a spot.

Yes, Mount Diablo State Park charges an entrance fee per vehicle. This fee typically covers parking and access to the park's facilities and trails. You do not usually need a separate hiking permit for day use. For current fees and any specific regulations, it's best to check the official California State Parks website.

Given the trail's length, difficulty, and exposure, you should bring plenty of water (more than you think you'll need, as water sources are limited), sun protection (hat, sunscreen, sunglasses), sturdy hiking shoes with good ankle support, layers of clothing, a map and compass or GPS device, snacks, and a first-aid kit. Be aware of poison oak, which is common in the park.

Yes, this extensive route incorporates sections of several other trails. You'll find yourself on portions of the ADT - California - T - Seg 7, the Diablo Regional Trail, the Briones to Mt. Diablo Regional Trail, the Mokelumne Coast to Crest Trail, and notably, Burma Road.

Beyond the challenging terrain and steep grades, hikers should be aware of significant sun exposure, especially during warmer months, which necessitates ample hydration and sun protection. Poison oak is prevalent in the park, so knowing how to identify and avoid it is important. Wildlife encounters, including rattlesnakes, are possible, so stay alert.