4.7
(38)
588
riders
70
rides
Gravel biking in Santa Clara County offers diverse terrain, from flat bay shorelines to challenging climbs through regional parks. The landscape features a mix of coastal trails, rolling hills, and routes around reservoirs and through established county parks. This region provides varied gravel bike trails suitable for different skill levels, characterized by its natural beauty and accessible outdoor spaces.
Last updated: May 11, 2026
4.0
(1)
4
riders
29.7km
02:00
40m
40m
This easy 18.5-mile gravel biking loop offers scenic views of San Francisco Bay and exceptional birdwatching in Ravenswood Open Space Preser
36.7km
03:44
740m
740m
Embark on a difficult gravel biking adventure through Mount Madonna County Park via Summit Road. This route spans 22.8 miles (36.7 km) and challenges you with a significant 2416 feet (736 metres) of elevation gain. You will ride through majestic redwood forests, transitioning into oak woodlands and grassy meadows, with a surprising waterfall adding to the natural beauty. Expect to spend around 3 hours and 44 minutes on this demanding ride, enjoying varied terrain and expansive views from the summit.
Before you go, be aware that the trail includes a mix of paved roads and dirt or gravel surfaces. Some sections feature loose gravel, tree roots, and ruts, so prepare for technical riding. You should also know that parts of Summit Road outside the park boundaries may have private road signs, and you will share the road with vehicular traffic. Always stay mindful of your surroundings and other road users for a safe experience.
Mount Madonna County Park offers a diverse landscape that makes this route particularly notable. From the highest points, you can enjoy sweeping views of Monterey Bay to the west and the Santa Clara Valley to the east on clear days. The transition from towering redwoods to open meadows showcases the rich natural environment of the Santa Cruz Mountains. This trail is perfect if you are an experienced gravel cyclist looking for a challenging and scenic outing.

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21.1km
01:59
510m
510m
Embark on a challenging gravel biking adventure through Mount Madonna County Park, where dense redwood forests cast long shadows, creating a serene atmosphere. As you climb, keep an eye out for vineyards and charming cottages along Redwood Retreat Road, eventually reaching the summit for expansive views of Monterey Bay and the Santa Clara Valley. This difficult 13.1-mile (21.1 km) loop involves a significant 1672 feet (510 metres) of elevation gain, typically taking around 1 hour and 58 minutes to complete. The unpaved sections offer a great dual sport riding experience with minimal traffic.
Prepare for a demanding ride; this route is considered difficult and requires advanced gravel biking skills, especially when navigating transitions between packed and loose surfaces, tree roots, and ruts. You will encounter a notably steep climb on Redwood Retreat Road as it ascends towards Mt. Madonna Road, which can be quite strenuous. The park is dog-friendly on all its trails, so your canine companion can join you. Additionally, Mount Madonna County Park provides amenities such as campgrounds and yurts if you plan an extended stay.
This trail stands out for its unique blend of natural beauty and historical remnants. The park is home to the ruins of a grand mansion built by Henry Miller, a 19th-century cattle baron, adding a layer of historical intrigue to your ride. You might also spot the park's resident herd of white fallow deer, descendants of Miller's private collection, roaming freely. The diverse ecosystem, from redwoods to open vistas, makes this a notable destination for those seeking both a physical challenge and a connection to local history and wildlife.
5.0
(1)
26
riders
45.2km
03:26
440m
440m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.0
(2)
16
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
32
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
8
riders
25.4km
02:22
740m
750m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
19
riders
Easy gravel ride. Great for any fitness level. 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.
5.0
(1)
11
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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This is not a very exciting trail to hike. It’s pretty much a trail surrounded by thick walls of vegetation, with almost no opportunity to view your surroundings. The trail is 70% rocks/gravel, and 30% hard packed clay, so avoid wearing snickers
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The San Francisco Bay Trail is a flat, paved trail that runs along the border of the bay. It is a great place for a run because it is traffic free and has great views.
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Ravenswood is a multi-use trail that encircles a wetland on the edge of the San Francisco Bay. You are likely to encounter a high number of local and migratory bird species while exploring the area, and though noise can be an issue near the highway it gets much quieter the further out you go.
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The San Francisco Bay Trail consists of over 350 miles of interconnected trails around the eponymous bay. This section, between the urban sprawl and evaporation bonds for salt mining, won't win any awards for its scenic views. However, it is a nice separate trail that allows you to ride away from road traffic.
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Forbes Mill Museum, housed in a two-story building of the original 1854 flour mill, offers a glimpse into Los Gatos' history. Built by James Alexander Forbes as California's first commercial flour mill, over the years, it served various roles, including a power plant and a PG&E substation. Saved from demolition in 1982, the building now features historical exhibits as part of New Museum Los Gatos.
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The Almaden Quicksilver Mining Museum is in the historic 1854 Casa Grande manor. The museum gives visitors a glimpse into the history of mercury (also known as quicksilver) mining and the role it played in the California Gold Rush. Visitors can explore exhibits of 19th-century mining photos, a mine tunnel diorama, and artifacts from mining families. The museum is open Friday through Sunday from 12:00 to 4:00 PM, with a suggested $2 donation for admission, and the museum grounds are open daily from 8:00 AM to sunset.
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The Donald M. Somers Water Pollution Control Plant, also called the Sunnyvale Water Treatment Center, is a wastewater treatment plant focused on making the water clean enough to be safely released into San Francisco Bay or used for non-drinking purposes. The plant produces about 300 million gallons of recycled water each year.
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A good little climb to get your legs warmed up. This trail does get busy though, especially on weekends, so be courteous to your fellow trail users.
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Santa Clara County offers a wide selection of gravel biking routes, with over 90 trails recorded on komoot. These range from easy, flat rides along the bay to challenging climbs through regional parks.
Yes, Santa Clara County has several easy gravel routes. A great option for beginners is the San Francisco Bay and Ravenswood Trail Loop, which offers flat terrain along the bay for a relaxed ride.
For advanced gravel bikers seeking a challenge, Santa Clara County features numerous difficult routes. Consider the Mount Madonna County Park via Summit Road, which includes significant elevation gain, or the Lexington Reservoir – Los Gatos Creek Trail loop from Oak Meadow for a demanding ride.
Many trails in Santa Clara County offer beautiful views. Routes through areas like Mount Madonna County Park, such as the Mount Madonna County Park loop via Redwood Retreat Road, provide vistas of redwood forests and rolling hills. Trails along the San Francisco Bay also offer expansive shoreline views.
The gravel biking routes in Santa Clara County are highly rated by the komoot community, with an average score of 4.5 stars from over 50 reviews. Riders often praise the diverse terrain, from flat bay shorelines to challenging climbs, and the natural beauty of the parks and reservoirs.
Yes, many gravel bike routes in Santa Clara County are designed as loops. Examples include the New Chicago Marsh – Alviso Marina County Park loop from River Oaks, which explores the bay area, and the Mine Hill Trailhead – Mine Hill Trail loop from Almaden Quicksilver County Park.
Beyond the trails themselves, Santa Clara County offers natural attractions like waterfalls. You can find highlights such as Granuja Falls and Pacheco Falls, often accessible from nearby parks. The region also features various bike parks with specific trails like White Oak Trail.
Yes, Santa Clara County features routes that take you past beautiful reservoirs and lakes. The Lexington Reservoir – Los Gatos Creek Trail loop from Oak Meadow is a prime example, offering scenic views around Lexington Reservoir.
Among the longer options, the Mine Hill Trailhead – Lisa Killough Trail loop from Almaden Quicksilver County Park spans over 40 kilometers, providing an extensive ride through varied terrain.
Yes, you can experience redwood forests on gravel trails in Santa Clara County. The Mount Madonna County Park loop via Redwood Retreat Road is a notable route that leads through these majestic trees.
Santa Clara County generally offers good gravel biking conditions year-round due to its mild climate. Spring and fall provide pleasant temperatures, while winter can still be enjoyable on many trails, though some higher elevation routes might be affected by weather. Summer can be warm, so early morning rides are often preferred.


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