Tassajara Ridge Trail Loop
Tassajara Ridge Trail Loop
2.9
(11)
42
riders
01:23
15.6km
290m
Mountain biking
This easy 9.7-mile mountain biking loop offers expansive views of Mount Diablo and rolling hills, especially vibrant in spring.
Last updated: February 26, 2026
Waypoints
Start point
Parking
Get Directions
2.86 km
Highlight • Viewpoint
Tip by
4.61 km
Highlight (Segment) • Trail
Tip by
9.75 km
Highlight (Segment) • Trail
Tip by
15.6 km
End point
Parking
Way Types & Surfaces
Way Types
8.07 km
3.45 km
2.95 km
1.02 km
123 m
Surfaces
6.40 km
4.61 km
4.45 km
140 m
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Elevation
Highest point (310 m)
Lowest point (150 m)
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Weather
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Wednesday 6 May
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This route was planned by komoot.
The Tassajara Ridge Trail Loop is conveniently accessed from the Hidden Valley Open Space. You'll find parking available at the trailhead there, making it easy to start your ride.
Yes, the Tassajara Ridge Trail Loop is generally considered easy to moderate and suitable for a range of fitness levels, including beginners. While there are some steep climbs and descents, and sections can be bumpy, the 15.6 km loop from Hidden Valley Open Space is a great option for those new to mountain biking.
The trail primarily features doubletrack fire roads, along with dirt and gravel sections. You can expect some steep climbs and descents. Be aware that some parts of the fire road can be like cobblestones, and sections may be rutted and bumpy due to cow traffic, especially on downhills. There are also earthen sections with a mix of grass and gravel.
You'll be treated to expansive views of Mount Diablo and the surrounding cities like San Ramon, Dublin, and Danville. Key highlights include the View from Hidden Valley Ridge. The trail also winds through picturesque rolling hills, especially vibrant in spring.
The best time to experience the trail's vibrant green hills and wildflowers is during spring and early summer. The scenery is particularly picturesque when the hills are lush and adorned with blooms.
No, there are typically no permits or entrance fees required to access the Hidden Valley Open Space or to ride the Tassajara Ridge Trail Loop. It's a publicly accessible area.
While the trail is generally accessible, specific regulations regarding dogs (leash rules, waste disposal) within Hidden Valley Open Space should always be checked with local park authorities before your visit to ensure compliance.
The Tassajara Ridge Trail Loop, which is about 15.6 kilometers (9.7 miles) long, typically takes around 1 hour and 23 minutes to complete by mountain bike, depending on your pace and stops.
Yes, the route is part of a larger trail system. It incorporates sections of the Tassajara Ridge Trail and the Rolling Hills Trail. You'll also pass through parts of the Lower Hidden Valley Ridge Trail, Upper Hidden Valley Ridge Trail, Live Oak Trail, and Alamo Creek Trail, offering options for extending your ride.
A distinctive feature of this trail is the presence of grazing cattle, which you'll often see along the paths. While they contribute to the pastoral scenery, be aware that their presence can lead to cow pies and rougher, hoof-printed sections of the trail. In spring, wildflowers add to the natural beauty.
While generally easy, some sections feature tough climbs, and the trail can be very bumpy, especially for hardtail bikes. One memorable section is described as a "hairy hairpin turn on a rutted cow-trampled tread." For the best experience, consider riding in spring for lush green hills and wildflowers, and be prepared for potentially rougher terrain due to cattle.