5.0
(1)
26
riders
8
rides
Gravel biking in Russian Ridge Open Space Preserve features routes across grassland hills and through ancient oak groves, offering panoramic views of the Pacific Ocean and the San Francisco Bay Area. The preserve's trail network includes varied surfaces, from duff-covered paths to gravelly and rocky sections. Riders encounter significant elevation gains on routes that traverse diverse ecosystems and connect to neighboring open spaces.
Last updated: June 29, 2026
5.0
(1)
5
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
11
riders
48.0km
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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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.
4
riders
6.49km
00:32
140m
140m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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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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Didnβt 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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A small hike/bike-in campground with a vault toilet and (non-portable) water. You can oversee the lights of Bay Area at night and wake up above the cloud in the morning. You have to get a permit ($2) and the park rangers come and check the permit in the evening.
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The preserve offers a diverse mix of terrain, from wide ranch roads to narrower paths. You'll encounter surfaces varying from duff-covered to gravelly and rocky sections. Many routes feature significant elevation gains, leading through grassland hills, open meadows, and ancient oak groves.
Yes, Russian Ridge Open Space Preserve is known for its challenging climbs and difficult routes. For instance, the Old La Honda Road β West Old La Honda Road loop from Portola Valley is a difficult 29.9-mile path featuring significant elevation gains and sweeping vistas. Another demanding option is the Black Mountain β Arastradero Lake loop from Portola Valley.
From the ridgeline, especially Borel Hill, you can enjoy breathtaking 360-degree vistas of the Pacific Ocean, the San Francisco Bay Area, and Mount Diablo. Other notable viewpoints include Descent toward the coast on Alpine and Skyline Boulevard Viewpoint. You can also explore the Ancient Oaks Trail or ride to Mindego Hill, which is an ancient volcano.
Spring is an excellent time to visit, as the grassland hills and open meadows are particularly vibrant with wildflowers like poppies, lupine, and mules ears. The preserve offers scenic riding year-round, but spring provides an added visual spectacle.
Yes, there are moderate options available. The White Oak Trail β Bella Vista Trail loop from Los Trancos Open Space Preserve is a moderate 6.2-mile trail that winds through shaded areas with ancient oak groves. Another moderate choice is the Old La Honda Road β Portola Road loop from Portola Valley.
Yes, Russian Ridge Open Space Preserve's trails connect with neighboring open space preserves such as Monte Bello, Coal Creek, and Skyline Ridge. This connectivity allows riders to create extended 'mini epic' rides, and the Bay Area Ridge Trail also runs through the preserve.
The preserve's diverse ecosystems, including varied plant communities and abundant springs, create a rich habitat for wildlife. You might frequently spot raptors like red-tailed hawks, turkey vultures, and golden eagles soaring over the grasslands, and coyotes are known to patrol the ridges.
Yes, many of the gravel biking routes in Russian Ridge Open Space Preserve are designed as loops. Examples include the White Oak Trail β Bella Vista Trail loop and the Adobe Creek β Boronda Lake loop from Portola Valley.
Gravel bikers frequently praise the stunning panoramic views, especially from the ridgelines, which offer expansive vistas of the Pacific Ocean and the entire San Francisco Bay Area. The diverse terrain, from challenging climbs to scenic descents through oak groves and meadows, is also a highlight for many.
There are 8 gravel bike routes documented in this guide for Russian Ridge Open Space Preserve, ranging from moderate to difficult, ensuring options for various skill levels.
While many routes feature significant elevation gains and challenging sections, there are some easier paths within the preserve's extensive trail network. For a family-friendly experience, look for trails with less steep grades and smoother surfaces, though specific 'easy' gravel routes for beginners are less common than moderate or difficult ones.


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