Tassajara Ridge and Dougherty Valley Ridge Loop

You can access the trail from several points. Popular starting locations include the San Ramon Sports Park, a dog park at the Tassajara Ridge Staging Area, and areas near Dougherty Valley High School. These spots typically offer convenient parking for trail users.

The Tassajara Ridge and Dougherty Valley Ridge Loop is primarily located within the Hidden Valley Open Space. Generally, there are no specific permits or entrance fees required for day use of these public trails. However, it's always a good idea to check the official East Bay Regional Park District website for any updated regulations or special event requirements before your visit.

The loop offers a diverse and engaging experience with varying terrain. You'll encounter a mix of doubletrack fire roads, some of which are gradually becoming singletrack. Be prepared for sections that can be quite bumpy, rutted, and 'cow-pocked' due to grazing cattle. There are both steady, easy climbs and tough, steep ascents, including 'punchy rollers' and a challenging hairpin turn. Some fire road sections can feel like cobblestones, and the trail can be muddy after rain.

The loop is known for its expansive views. You'll find several viewpoints offering stunning glimpses of Mount Diablo and the surrounding cities like San Ramon, Dublin, and Danville. The View from Hidden Valley Ridge is particularly notable, and the Dougherty Valley Ridge section provides great vistas of the valley and Mount Diablo. The rolling hills are especially picturesque in spring when they are lush green and wildflowers are in bloom.

Spring and early summer are ideal for riding this loop, as the rolling hills are lush green and wildflowers are in bloom, enhancing the scenic beauty. However, the trail can be ridden year-round. Be aware that conditions can be muddy after rain, and summer months can be hot, so plan accordingly with plenty of water.

Yes, the trails in the Hidden Valley Open Space, including this loop, are generally dog-friendly. However, dogs must be kept on a leash to protect wildlife and ensure the safety of other trail users and grazing cattle. Always remember to pack out any waste.

Encounters with grazing cattle are common along this loop, and their presence can contribute to rutted and 'cow-pocked' sections of the trail. While specific wildlife sightings aren't guaranteed, you might also spot various birds and small mammals typical of California's rolling hills.

While generally considered moderate, some sections can be challenging. It's often recommended for 'MTB Beginners but with endurance' and is a good training ground. There are steep sections and tough climbs that might require walking for some, especially those without strong climbing capabilities. It's a fun and challenging ride for those looking to build their skills.

Many riders suggest going clockwise on the loop. This direction typically offers longer, more gradual downhills and shorter, steeper climbs, which can be a more enjoyable experience for some mountain bikers.

Yes, the Tassajara Ridge Trail, which forms part of this loop, is connected to a larger network of trails. The route also passes through sections of the Iron Horse Trail, Dougherty Valley Ridge Trail, Lower Hidden Valley Ridge Trail, Rolling Hills Trail, Jack Rabbit Run Trail, Quail Run Trail, and Coyote Canyon Trail, allowing for extended rides and varied loop options.

The full loop is approximately 32.6 km (20.2 miles) long. For an average mountain biker, it typically takes around 2 hours and 30 minutes to 3 hours to complete, depending on your pace and how often you stop to enjoy the views.