Acalanes Ridge and Briones to Mt. Diablo Trail Loop

A common access point for this loop is the Camino Verde Trailhead, Acalanes Ridge OSP. Another option is near Larkey Park, which connects to the Briones to Mt Diablo Regional Trail - Larkey to Acalanes East.

Yes, dogs are generally allowed on the trails within Acalanes Ridge Open Space and Briones Regional Park. However, they must be kept on a leash at all times. Be prepared to share the trails with other users, including hikers and equestrian riders.

The best time to ride this loop is typically during the spring and fall. While beautiful, summer can be very hot with limited shade, and fire roads can become loose. Winter rides are possible, but heavy rains can turn sections, especially within Briones Regional Park, into a 'mud bog'.

No, there are generally no permits or entrance fees required to access Acalanes Ridge Open Space or Briones Regional Park for day use. However, always check the latest regulations from the East Bay Regional Park District before your visit.

The terrain is varied. You'll encounter unpaved, paved, and asphalt paths within Acalanes Ridge Open Space. The Briones to Mt Diablo Regional Trail is largely a well-used fire road, which can be gravel, rutted after rain, or loose in summer. Within Briones Regional Park, you'll find a mix of flowy introductory trails and significantly more technical singletrack with steep sections, berms, and drops.

The overall loop is rated as 'easy' for mountain biking, making it suitable for various skill levels. The fire road portions of the Briones to Mt. Diablo Regional Trail are considered an easy ascent and a good option for novice mountain bikers. However, be aware that specific singletrack trails within Briones Regional Park can range from introductory to very technical, so choose your paths accordingly.

You can expect panoramic views of the Walnut Creek and Lafayette area from Acalanes Ridge. From the ridgetops in Briones, views extend towards Mount Diablo and across Suisun Bay to the Delta. The landscape features picturesque valleys, rolling grasslands, and wooded sections, including oak forests.

Yes, the route passes through several notable areas. You'll traverse the Briones to Mt Diablo Regional Trail - Larkey to Acalanes East, the Camino Verde Trailhead, Acalanes Ridge OSP, and sections of the Ridge Top Trail and Acalanes Trail.

Yes, the route is part of a larger network. It utilizes significant portions of the Briones to Mt. Diablo Regional Trail and also passes through sections of the ADT - California - T - Seg 8 and the Mokelumne Coast to Crest Trail.

The estimated duration for this 11.2 km (7-mile) mountain biking loop is approximately 1 hour. This can vary based on your fitness level, the specific trails you choose within the network, and how often you stop to enjoy the views.

While there are no guaranteed water sources directly on the trail, you might find facilities near access points like Larkey Park. It's always best to carry sufficient water for your entire ride, especially during warmer months, as shade is limited in many grassland areas.