5.0
(2)
45
riders
1
ride
Gravel biking in Coyote Valley Open Space Preserve offers a rural and wilderness experience across diverse landscapes. The preserve features well-maintained no traffic gravel bike trails that traverse grasslands, woodlands of oaks and California bays, and rare serpentine rock outcroppings. Elevated points along the routes provide panoramic views of Mount Hamilton, Mount Umunhum, and the Coyote Valley. Seasonal creeks are present in winter, adding to the natural features.
Last updated: July 10, 2026
6
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
73.0km
05:22
1,430m
1,430m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4
riders
48.3km
03:29
550m
550m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
10
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
10
riders
38.0km
03:15
1,080m
1,080m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Coyote Valley Open Space Preserve
If you make the summit a fantastic view awaits. Be aware the road goes down then up to the road about then up again to the summit!…
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Still one of the highest points in the Santa Cruz Mountains, even though the military graded and flattened the actual summit to create an Air Force base. The summit was cleaned of hazardous material in 2009, then carefully restored after a lot of community input. It's a lovely place to visit now!
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Climbing Mount Umunhum is a tough but rewarding challenge. The road is steep, with sections reaching up to 18% grades, so pace yourself. The views from the top are spectacular, making the hard work worth it. Start early to avoid traffic and the heat, and be prepared for a long, demanding ascent.
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Located right by the parking area you can find some additional info before heading out on your ride.
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Nice gravel trail that winds its way through the park. Some sections follow long the water giving you some great views.
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At the summit of Mt Umunhum is an 8 story tower that was used as a radar outpost by the US Air Force until 1980. In addition to this piece of military history you'll also find stunning views in all directions. On clear days you can see as far as San Francisco and Monterey.
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This section has a relatively gentle slope and does not undergo significant incline changes. It presents mesmerizing surroundings abundant with wildflowers and wildlife.
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Quicksilver is a term used to refer to mercury. These lands, now transformed into an outdoor activity park, were once places where mercury mines were found.
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While the preserve offers trails suitable for various skill levels, the routes featured in this guide are generally considered difficult due to their length and elevation gain. For example, the Lisa Killough Trail – Lisa Killough Trail Viewpoint loop covers over 25 km with more than 570 meters of ascent.
The preserve's main attraction for cyclists, the Arrowhead Loop Trail, is described as family-friendly with manicured gravel and no technical sections. However, the specific routes highlighted in this guide are longer and more challenging, making them less suitable for casual family rides. If you're looking for an easier, shorter option, the Arrowhead Loop Trail itself is a good starting point within the preserve.
Yes, all the routes featured in this guide are designed as loops, allowing you to start and end at the same point. For instance, the Mine Hill Trailhead – Mine Hill Trail loop offers a substantial circular ride of nearly 25 km.
The preserve offers a free parking lot, making it convenient for visitors. Many of the featured routes, such as the Mine Hill Trailhead – Lisa Killough Trail loop, start from accessible trailheads like the Mine Hill Trailhead, which typically has parking facilities.
Spring is particularly beautiful due to the dazzling displays of wildflowers, including California poppies, transforming the hillsides. Winter months bring seasonal creeks to life, adding to the scenic beauty. The preserve is generally enjoyable year-round, but checking local weather conditions is always recommended.
Yes, Coyote Valley is a haven for wildlife and a popular spot for birdwatching. You might spot red-tailed hawks, golden eagles, and yellow-billed magpies. The preserve also supports diverse wildlife like bobcats, mountain lions, and foxes, as it serves as a critical ecological corridor.
The trails wind through diverse ecosystems, including grasslands and woodlands of oaks and California bays, passing rare serpentine rock outcroppings. From elevated points, you can enjoy stunning panoramic views of Mount Hamilton, Mount Umunhum, and the entire Coyote Valley. Scenic outlook areas and picnic tables are available to enjoy these vistas.
The trails are generally well-maintained, with the primary Arrowhead Loop Trail described as manicured gravel with no technical sections. While the routes in this guide are more challenging, they still offer a good gravel surface. Be aware that seasonal creeks can come alive in winter, potentially affecting some sections.
Yes, the preserve provides an accessible all-gender restroom and picnic tables, ensuring a comfortable visit for cyclists and other outdoor enthusiasts.
This guide features 5 distinct no-traffic gravel bike trails, all offering challenging and rewarding experiences within Coyote Valley Open Space Preserve and its surrounding areas.
The area is highly rated by the komoot community, with an average score of 5.0 stars based on user reviews. Reviewers often praise the quiet woodlands, the diverse landscapes, and the rewarding climbs that lead to spectacular views.
Coyote Valley Open Space Preserve is known for its well-maintained, less technical gravel trails, particularly the Arrowhead Loop, offering a more accessible experience with excellent wildlife viewing and panoramic views. Calero County Park, while also offering great biking, might feature more varied terrain and potentially more technical sections, appealing to riders looking for different challenges. Both offer beautiful natural settings in the region.


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