Russian Ridge Open Space Preserve (Closed Area)
Russian Ridge Open Space Preserve (Closed Area)
5.0
(1)
32
riders
9
rides
Gravel biking in Russian Ridge Open Space Preserve (Closed Area) offers routes through diverse landscapes, including open ridgetops, grasslands, and wooded sections. The preserve is characterized by varied terrain, with elevations providing panoramic views of the surrounding region. Trails traverse both exposed areas and dense forests of California bay, madrone, and live oak. The area features rolling grassy hills and steep forested canyons, providing a mix of environments for gravel biking.
Last updated: October 2, 2026
5.0
(1)
4
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
14
riders
48.2km
03:36
1,170m
1,170m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

5
riders
48.2km
04:01
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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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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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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There are 8 gravel biking routes available in Russian Ridge Open Space Preserve. These trails offer a range of experiences, from moderate loops to more challenging, longer rides.
The preserve features diverse terrain, including open ridgetops, expansive grasslands, and shaded, wooded sections. You'll encounter a mix of exposed areas and dense forests of California bay, madrone, and live oak, with consistent elevation changes providing panoramic views.
Yes, Russian Ridge Open Space Preserve offers 4 difficult gravel biking routes. For example, the Portola Valley – Old La Honda Road loop from Portola Valley is a challenging 29.7-mile trail through varied landscapes, often taking over 4 hours to complete. Another demanding option is the Top of Black Mountain – Arastradero Lake loop from Portola Valley, which covers nearly 30 miles with significant elevation gain.
Russian Ridge is renowned for its panoramic views. You can enjoy sweeping vistas of the Santa Cruz Mountains, San Francisco Bay, Silicon Valley, and the Pacific Ocean from the open ridgetops. Borel Hill, the highest point in San Mateo County, offers a spectacular 360-degree view. The preserve also features the Ancient Oaks Trail with impressive gnarled oak trees, and vibrant wildflowers in spring.
While many routes involve elevation, there are shorter, moderate options. The White Oak Trail – Bella Vista Trail loop from Los Trancos Open Space Preserve is a moderate 6.2-mile trail that takes about 1 hour 17 minutes, featuring varied terrain through wooded areas and open spaces. Another moderate choice is the Old La Honda Road – Portola Road loop from Portola Valley, which is 8.6 miles long.
The preserve offers seasonal beauty throughout the year. Spring is ideal for experiencing vibrant wildflowers. Summer brings golden grasslands, while autumn provides crisp, clear views. Even winter can be appealing, with occasional snow dusting the hilltops. Always check current trail conditions before heading out.
Yes, many of the gravel biking routes in Russian Ridge Open Space Preserve are loops. Examples include the Portola Valley – Junipero Serra Boulevard loop from Portola Valley, a moderate 19.9-mile path, and the Portola Valley – Old La Honda Road loop from Portola Valley, a longer 29.7-mile option.
The komoot community rates the routes in Russian Ridge Open Space Preserve highly, with an average score of 4.0 stars. Reviewers often praise the diverse landscapes, from open ridgetops with panoramic views to shaded wooded sections, and the variety of terrain suitable for different skill levels.
Russian Ridge Open Space Preserve is popular for various outdoor activities, including hiking and horseback riding, in addition to biking. It's important to be mindful of other trail users and adhere to all posted preserve rules to ensure a safe and enjoyable experience for everyone. Always stay on marked trails.
The preserve provides a refuge for a variety of animals. You might spot coyotes, bobcats, bats, and California newts. It's also considered one of the best locations in the Bay Area for observing raptors such as Red-tailed hawks, turkey vultures, Cooper's hawks, sharp-shinned hawks, and golden eagles soaring over the grasslands.
Access to Russian Ridge Open Space Preserve typically includes designated parking areas. It's advisable to check the official Midpeninsula Regional Open Space District website or local park information for specific parking lot locations and any potential fees or restrictions before your visit.


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