The best MTB trails around Brentwood
4.5
(7)
33
riders
12
rides
Mountain biking around Brentwood, California, offers access to diverse terrain at the base of the Santa Monica Mountains. The region features a mix of regional preserves, canyons, and reservoirs, providing varied landscapes for riders. Trails often wind through open spaces and offer views of the surrounding hills and valleys. This area provides a range of mountain bike trails suitable for different skill levels.
Best mountain bike trails around Brentwood
- The most popular mountain bike trail is Miwok & Manzanita Trail…
Last updated: April 25, 2026
6
riders
19.6km
02:09
550m
550m
Mountain bike the moderate Miwok & Manzanita Trail loop in Round Valley Regional Preserve, covering 12.2 miles with scenic rolling hills.
3
riders
11.0km
01:05
240m
240m
This easy 6.9-mile mountain biking loop in Black Diamond Mines Regional Preserve offers scenic views, historical sites, and 782 feet of elev
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8.88km
00:59
290m
290m
This easy 5.5-mile mountain biking loop around Los Vaqueros Reservoir offers scenic views and a quick ride, perfect for beginners.
50.7km
02:35
40m
40m
This 31.5-mile mountain biking loop, rated moderate, takes you through the scenic Marsh Creek Trail and Discovery Bay area.
4.17km
00:20
20m
20m
Ride the easy 2.6-mile Contra Loma Shore loop in Contra Loma Regional Park, offering scenic views of the reservoir and diverse wildlife.
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Tips from the Community
Newport Drive is a nice quiet road with a bike lane, a nice change from the otherwise often shoulderless roads in this area. It passes by Discovery Bay, which is a charming, gated community that also has a public area. If you need a break, it's a good place to stop before heading back onto the highway.
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This barred tunnel was once a bustling entrance to the Star Mine, one of the most active coal mines in the area, providing a livelihood for many families. The rusted bars that now block the entrance are a stark reminder of the mine's past glory and the hard work that went into extracting coal from deep beneath the earth's surface.
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Contra Loma Reservoir is an 80-acre reservoir located in Contra Loma Regional Park that offers year-round fishing and summer swimming. Additionally, there are hiking and biking trails around the reservoir.
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This barred tunnel was once a bustling entrance to the Star Mine, one of the most active coal mines in the area, providing a livelihood for many families. The rusted bars that now block the entrance are a stark reminder of the mine's past glory and the hard work that went into extracting coal from deep beneath the earth's surface.
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The Stewartville Trail starts just south of the parking lot and runs through the preserve from east to west, linking the former Somersville and Stewartville mining towns. The route gradually climbs through a small, beautiful valley and can be ridden in either direction, but clockwise is recommended for the best ride. The trail offers excellent views in all directions, with Rose Hill Cemetery visible in the distance while looking west, Sand Creek Valley to the east, and Mount Diablo to the south.
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The only plot of waterfront land not blocked by fenced residences. Private, so also not a public access to the waterfront.
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Every inch of the waterfront on the tip of Discovery Bay is fenced off by private residences. The park has no river access, but at least provides some green and water
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A partially gated private, partially publically accessible residential area in the San Joaquin River delta, elaborately built into the former wetlands with water access to almost all homes.
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Frequently Asked Questions
What kind of terrain can I expect on mountain bike trails around Brentwood, California?
Mountain biking around Brentwood, California, offers diverse terrain at the base of the Santa Monica Mountains. You'll find trails winding through regional preserves, canyons, and areas near reservoirs. The landscape often features open spaces with views of surrounding hills and valleys, providing a varied riding experience.
How many mountain bike trails are there in the Brentwood area?
There are over 10 mountain bike trails available around Brentwood, California, catering to various skill levels. The komoot community has explored 12 different routes in the area.
What are the difficulty levels of mountain bike trails near Brentwood?
The trails around Brentwood offer a good mix of difficulty levels. You'll find both easy and moderate routes. Currently, there are 6 easy trails and 6 moderate trails listed, making it accessible for different rider abilities.
Are there any loop trails for mountain biking in Brentwood?
Yes, many of the mountain bike trails around Brentwood are designed as loops. For example, you can explore the Miwok & Manzanita Trail loop — Round Valley Regional Preserve, the Star Mine Trail loop — Black Diamond Mines Regional Preserve, or the Contra Loma Shore loop — Contra Loma Regional Park.
What natural features or landmarks can I see while mountain biking around Brentwood?
The trails often pass through scenic areas. You can encounter natural features like the Contra Loma Reservoir and Big Break Regional Shoreline. The region is also at the base of the Santa Monica Mountains, offering diverse landscapes and potential viewpoints.
Are there any trails suitable for beginners or families?
Yes, there are several easy trails perfect for beginners or families looking for a less strenuous ride. The Star Mine Trail loop — Black Diamond Mines Regional Preserve is an easy 6.9-mile path, and the Contra Loma Shore loop — Contra Loma Regional Park is another easy option at just over 2.5 miles.
What do other mountain bikers say about the trails in Brentwood?
The mountain bike routes in Brentwood are highly rated by the komoot community, with an average score of 4.0 stars. Riders often appreciate the varied terrain and the access to regional preserves and open spaces.
Can I find longer mountain bike routes for extended rides?
Yes, for longer rides, consider the Brentwood & Discovery Bay loop — Discovery Bay. This trail spans 31.5 miles (50.7 km) and typically takes around 2 hours 35 minutes to complete, offering an extensive ride through Discovery Bay and its surrounding areas.
Are there any trails that offer views of reservoirs?
Absolutely. The Eagle Ridge Trail loop — Los Vaqueros Reservoir and Watershed is an easy 5.5-mile route that provides views of the reservoir. Additionally, the Contra Loma Shore loop — Contra Loma Regional Park also offers views of the Contra Loma Reservoir.
What is the typical elevation gain on Brentwood's mountain bike trails?
Elevation gain varies depending on the trail. For instance, the Miwok & Manzanita Trail loop has an elevation gain of over 550 meters, while flatter routes like the Brentwood & Discovery Bay loop have minimal elevation changes, around 40 meters.
Are there any trails that pass through historic areas?
Yes, the Star Mine Trail loop — Black Diamond Mines Regional Preserve explores a historic area, offering a mix of open and wooded sections within the preserve.
What are some other points of interest near the mountain biking trails?
Beyond the trails themselves, you can find other points of interest such as Mokelumne Trailhead and various sections of the Contra-Costa Canal, which are popular for cycling and walking.
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