Briones to Mt. Diablo Trail Loop
Briones to Mt. Diablo Trail Loop
3.0
(30)
61
riders
00:37
5.84km
150m
Mountain biking
This easy 3.6-mile mountain biking loop in Shell Ridge Open Space offers 488 feet of elevation gain and scenic views.
Last updated: February 26, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
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2.12 km
Highlight • Lake
Tip by
2.49 km
Highlight • Trail
Tip by
3.09 km
Highlight (Segment) • Trail
Tip by
5.84 km
End point
Way Types & Surfaces
Way Types
5.84 km
Surfaces
4.08 km
1.76 km
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Elevation
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Thursday 7 May
27°C
11°C
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This route was planned by komoot.
The Briones to Mt. Diablo Trail Loop can be accessed from various points. A common starting point is near Borges Ranch, which offers parking. Given the trail's connectivity, you can also find parking at other regional parks it traverses, such as Briones Regional Park or Diablo Foothills Regional Park.
Yes, dogs are generally allowed on the trails within Briones Regional Park and Mt. Diablo State Park, which this route connects. However, specific leash rules and restrictions may apply in certain areas or on particular trails. Always check local signage and park regulations before you go.
The spring is often considered the best time to ride this trail. The hills are vibrant green, wildflowers are abundant, and the weather is typically mild. Fall also offers pleasant riding conditions. Summers can be very hot, and some sections can become muddy and rutted after heavy winter rains, making them challenging.
Generally, there are no specific permits required for mountain biking on the Briones to Mt. Diablo Trail itself. However, some regional parks it connects, like Briones Regional Park or Mt. Diablo State Park, may have day-use fees or parking fees. It's always a good idea to check the specific park's website for the latest information before your visit.
The terrain is highly diverse. You'll encounter well-used fire roads, some of which can be smooth, while others might be rocky or rutted, especially after rain. There are also paved paths and community sidewalks in urban sections, and designated singletrack trails. Within Briones, expect fire roads with steep climbs, and on Mt. Diablo, trails range from gradual fire roads to technical, loose, and rocky sections.
The route offers expansive views of Mt. Diablo, Las Trampas, and Pine Canyon. You'll pass by natural features like Twin Ponds and ride along the scenic Briones to Mount Diablo Regional Trail. From higher points, you can often see across Suisun Bay towards the Delta or into the San Ramon Valley. Keep an eye out for local wildlife and diverse bird species.
Yes, the route is a significant connector and intersects with many other trails. You'll find sections that are part of the ADT - California - T - Seg 7, Diablo Regional Trail, and Mokelumne Coast to Crest Trail. It also crosses paths with local trails like Borges Ranch Trail, Coyote Pond Trail, Stonegate Trail, Twin Ponds Loop Trail, Foothills Trail, Fairy Lantern Trail, Buckeye Ravine Trail, Shell Ridge Trail, Sugarloaf-Shell Ridge Trail, Ridge Top Trail, and Indian Creek Trail.
While the specific loop described is rated 'easy' for mountain biking, the broader Briones to Mt. Diablo Trail corridor offers a range of difficulties. Some sections are suitable for beginners looking to improve skills on moderate hills, but be aware that the area is known for steep climbs on fire roads, with grades up to 25% in places. Beginners should research specific sections to ensure they match their skill level.
Shell Ridge Open Space is part of the network connected by this trail. Generally, mountain biking is permitted on designated trails. Always stay on marked trails, respect wildlife, and yield to hikers and equestrians. There are typically no entrance fees, but specific rules regarding dogs (leash laws), hours of operation, and fire restrictions should be observed. Check the East Bay Regional Park District website for the most current regulations.
Absolutely. The Briones to Mt. Diablo Trail is primarily a connecting corridor. Many riders use it as a base to create custom, longer, and more challenging loops by linking with other trails within Briones Regional Park and Mt. Diablo State Park. You can combine sections with routes like Wall Point Road or explore trails within Shell Ridge Open Space for extended adventures.
Given that the trail passes through and connects various regional parks and open spaces, you'll find amenities in nearby towns. Walnut Creek, for example, is a larger city close to several access points and offers a wide range of cafes, restaurants, and other services. Smaller communities around the parks may also have local establishments.