4.3
(17)
190
riders
22
rides
Mountain biking in Sierra Vista Open Space Preserve offers routes through rolling hills and oak woodlands in Santa Clara County. The terrain features a mix of fire roads and singletrack, providing varied surfaces for mountain bikers. Elevations range from gentle climbs along creek beds to more sustained ascents offering expansive views of the surrounding landscape. The preserve's natural environment provides a setting for outdoor activity.
Last updated: May 11, 2026
1
riders
5.35km
00:33
130m
130m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
5.0
(1)
15
riders
11.6km
01:24
450m
450m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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4.3
(3)
17
riders
22.4km
02:38
790m
790m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(5)
33
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
8
riders
12.7km
01:06
220m
220m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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The Mineral Springs Grotto in Alum Rock Park tells the story of the area's geological history and abundance of natural mineral springs. Developed between 1891 and 1902, masons crafted intricate stone grottoes using native rock to protect the springs: sulfur, magnesia, iron, and carbonated soda springs. These springs once supported a thriving health resort, with waters believed to have medicinal properties. Today park visitors can explore the grottoes and interpretive panels along the Creek Trail to learn about the springs’ historical significance and the park’s transformation from an ancient ocean beach to the stunning canyon seen today. Unfortunately, soaking is not allowed these days.
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Alum Rock Park, established in 1872, is one of California's oldest municipal parks, spanning 720 acres. Visitors can enjoy hiking, biking, horseback riding, and family picnicking with amenities like picnic tables, barbecue pits, restrooms, and a playground in the mid-canyon area. The park is wheelchair accessible and open daily from 8 a.m. to half an hour after sunset, a great spot to explore year-round.
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Visitors to the Penitencia Creek Trail can view the water-filled Dr. Robert W. Gross Recharge Ponds. These ponds, part of a system designed to recharge underground aquifers, are crucial for maintaining healthy groundwater levels that supply nearly half of Santa Clara County's water. While the ponds support wildlife, their primary purpose is water filtration, and visitors are reminded not to introduce fish or animals into the ponds.
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It's really amazing that this stone bridge is still here. I understand it was originally built to easily get pack horses across the creek — and of course the people with them, too.
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You can find free parking and restrooms by the side of the creek. From here you have the option of many different hilly but nontechnical trails up to Eagle Rock, Inspiration Point, Boccardo, or along the creek side.
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The Piedmont Ponds on the Penitencia Creek Trail are a collection of small ponds in San José just off this popular multi-use path. This is a nice spot to begin to slow down on your ride to look out for birds and other wildlife by and in the water.
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This trail can be ridden in either direction and plays out similarly no matter how you ride it. A short, switchbacky climb is rewarded with a fun twisty descent. If you need a rest after the climb there's a shady place to stop at the top of the hill.
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There are nearly 20 mountain bike routes available in Sierra Vista Open Space Preserve, catering to various skill levels. These include 1 easy route, 15 moderate routes, and 2 difficult routes.
You can expect a diverse landscape featuring rolling hills and oak woodlands. The trails offer a mix of fire roads and singletrack, with elevations ranging from gentle climbs along creek beds to more sustained ascents that provide expansive views.
Yes, there is at least one easy mountain bike trail. The Penitencia Creek and North Rim Loop is a 3.3-mile route with minimal elevation gain, perfect for those new to mountain biking or looking for a relaxed ride.
Yes, Sierra Vista Open Space Preserve offers 2 difficult mountain bike routes for experienced riders seeking a challenge. These trails typically feature significant elevation changes and more technical terrain.
The best time to go mountain biking in Sierra Vista Open Space Preserve is generally during the spring and fall. These seasons offer cooler temperatures and lush landscapes, making for more comfortable rides. Summers can be hot, and winters may bring rain, affecting trail conditions.
For families, the Penitencia Creek and North Rim Loop is an excellent choice. It's an easy, 3.3-mile route that takes about 30 minutes to complete, offering scenic creek views suitable for riders of varying ages and skill levels.
Yes, many of the mountain bike trails in Sierra Vista Open Space Preserve are loops. For example, the Upper Penitencia Creek – Penitencia (Gross) Ponds loop from Cropley is a moderate 16.6-mile loop, and the Todd L. Quick Trail – Upper Penitencia Creek loop from Alum Rock Park is a 7.2-mile loop.
The routes in Sierra Vista Open Space Preserve are highly rated by the komoot community, with an average score of 4.7 stars from over 10 reviews. Riders often praise the varied terrain, from rolling hills to creek-side paths, and the options available for different ability levels.
Yes, many routes in Sierra Vista Open Space Preserve feature sustained ascents that lead to expansive views of the surrounding landscape, including the Santa Clara Valley. The preserve's oak woodlands and creek beds also offer picturesque scenery throughout your ride.
Given the varied terrain and potential for elevation changes, it's recommended to wear moisture-wicking athletic clothing, appropriate for the weather conditions. Layers are advisable, especially during cooler mornings or evenings. Always wear a helmet, and consider gloves and protective eyewear for safety.
While Sierra Vista Open Space Preserve itself is a natural area with limited amenities, the preserve is located near Milpitas and San Jose, where you can find various cafes, restaurants, and shops for pre- or post-ride refreshments and supplies.
Parking is typically available at designated trailheads and access points to the preserve. It's advisable to check specific route details on komoot or the preserve's official website for the most accurate parking information for your chosen starting point.


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