5.0
(9)
97
riders
13
rides
Gravel biking in Foothills Open Space Preserve is primarily focused on paved roads within the preserve itself, as unpaved trails are generally restricted for bicycles. The surrounding region, situated in the Santa Cruz Mountains, features diverse terrain including rugged chaparral, dense woodlands, and open fields. Routes often traverse rolling hills and open landscapes, with moderate to significant elevation changes. This area provides varied gravel biking opportunities on designated paths and roads outside the immediate preserve boundaries.
Last updated: May 17, 2026
5.0
(1)
5
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
9
riders
48.1km
03:34
1,170m
1,170m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(1)
7
riders
26.1km
01:51
380m
380m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
48.2km
03:59
1,300m
1,300m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
2
riders
13.9km
01:13
440m
440m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Enid Pearson-Arastradero Preserve offers rolling grasslands mixed with oak and evergreen trees. The trail system starts on pavement and transitions to packed dirt and gravel—great for bikes with wider tires or a solid gravel setup. Keep an eye out for deer, coyotes, and even bobcats, and take a moment to pause at one of the benches or by Arastradero Lake to enjoy the open views.
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Borel Hill is my favorite place to watch spring flowers. The western slope near ancient oaks (5-10min west of Borel Hill) are covered with orange California Poppies and purple flowers starting in April. Borel Hill itself peaks around mid May and has a wide variety of flowers. The show lasts only a few weeks until end of May. The peak time and flower intensity varies from year to year, so come several times between April and May. There is small summit NW of Borel Hill and a narrow dirt trail leads you to a rock within 2 min. The rock is big enough for 2-3 to sit on. On a sunny day, the rock is nice warm even if the air is cold. Good views on the ocean and the Bay.
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Didn’t OLR used to turn into Dirt before reaching Skyline? Is it all pavement now?? Scott
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Here, the Steve's Creek Nature Trail and the Canyon Trail intersect. A lovely patch of grass surrounds the junction, making it an ideal spot for a break.
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Black Mountain, situated on Monte Bello Ridge, is a popular destination for hikers and mountain bikers. With an elevation of 2,812 feet, it's easy to understand why. From the summit, the views of the Santa Cruz Mountains and Silicon Valley are breathtaking.
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Boronda Lake features a couple scenic picnic areas with piers out over the water. A small arched bridge leads out to Sunfish Island from a trail on the side of the lake opposite the road. This is great place from which to enjoy beautiful Foothills Nature Preserve.
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Old La Honda Rd downhill video: https://youtu.be/icnBpBZQ8gE?si=xYovaH-Nr8llwLEM
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No, bicycles are generally restricted to paved roads only within Foothills Open Space Preserve. Unpaved trails are not permitted for bicycles. However, the surrounding region offers diverse terrain for gravel biking on designated paths and roads outside the immediate preserve boundaries.
The region surrounding Foothills Open Space Preserve, situated in the Santa Cruz Mountains, features diverse terrain including rugged chaparral, dense woodlands, and open fields. Routes often traverse rolling hills and open landscapes, with moderate to significant elevation changes.
Yes, there are a few easier options available. For instance, the White Oak Trail – Bella Vista Trail loop from Los Trancos Open Space Preserve is a moderate 6.2-mile route that offers a scenic loop through an adjacent open space, suitable for those looking for a less strenuous ride.
For experienced riders seeking a challenge, routes like the Old La Honda Road – West Old La Honda Road loop from Portola Valley offer a difficult 29.9-mile path with substantial elevation gain. Another demanding option is the Black Mountain – Arastradero Lake loop from Portola Valley, which is 48.1 miles with significant climbing.
While unpaved trails within Foothills Open Space Preserve are not open to bikes, you can find family-friendly options on designated paved roads within the preserve or on suitable gravel paths in the surrounding areas. Always check local regulations for specific trails.
The preserve and surrounding areas are a haven for wildlife. Common sightings include deer and coyotes. Lucky visitors might even catch a glimpse of a bobcat. Grasslands, in particular, are home to rodents, insects, and larger predators like red-tailed hawks and owls.
While specific landmarks directly on gravel biking routes vary, the region offers spectacular views. Foothills Nature Preserve itself features Boronda Lake and provides panoramic views of the Bay Area from certain hilltops, including 360-degree vistas from Vista Hill. You can explore these areas on foot or via paved roads.
There are over 15 gravel biking routes available in the Foothills Open Space Preserve area, ranging from moderate to difficult, offering diverse experiences for different skill levels.
The routes in the Foothills Open Space Preserve area are highly rated by the komoot community, with an average score of 4.6 stars from over 9 reviews. Riders often praise the varied terrain and the challenging climbs found on many of the routes.
Yes, many of the gravel biking routes in the area are designed as loops. For example, the Arastradero Lake – Bowl Loop Jumps loop from Los Altos is a 16.2-mile loop through varied terrain, and the Old La Honda Road – Portola Road loop from Portola Valley is a moderate 8.6-mile loop.
While Foothills Open Space Preserve has general access, specific public transport options directly to the start points of gravel biking routes in the surrounding areas may vary. It's advisable to check local transit schedules and routes for the most convenient access points.


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