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Charter Oak

The best MTB trails around Charter Oak

4.9

(6)

192

riders

15

rides

Mountain biking around Charter Oak, California, offers natural, unpaved trails that traverse diverse landscapes. The region is characterized by rolling hills, canyons, and mountainous backdrops, providing varied terrain and elevation changes for riders. Trails often feature shaded sections, eucalyptus trees, and coastal sage scrub, with uphill climbs to ridgetops. This area provides opportunities for mountain bikers seeking natural terrain and elevation changes.

Best mountain bike trails around Charter Oak

  • The most popular mountain bike trail is Puddingstone Reservoir Dam loop…

Last updated: October 27, 2026

5.0

(2)

23

riders

#1.

Puddingstone Dam – View of Puddingstone Reservoir loop from Frank G. Bonelli Regional Park

11.9km

01:00

160m

160m

Easy mountain bike ride.

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Easy

Moderate mountain bike ride. Good fitness required.

Moderate
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Moderate mountain bike ride. Good fitness required.

Moderate
Moderate

Moderate mountain bike ride. Good fitness required.

Moderate
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Popular around Charter Oak

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Tips from the Community

Lisa
June 30, 2025, Big Dalton Debris Basin

Sometimes there's a good-sized pool of water in this basin; most of the time, though, it's a boggy sort of wetland. Either way it's home to an interesting riparian, sage scrub and southern oak habitat.

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You can cycle across the top of the dam, which was constructed in 1928 to help control flooding in the region. It stands at 147 feet high, and today supports a myriad of outdoor recreation activities on the reservoir.

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The Palmer Evey Trail is a straightforward trail in the San Bernadino Mountains. If you want to get up to Potato Peak, there is a short spur trail to take you to the peak.

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Alex
December 6, 2024, View of Glendora

At the junction of Lower Monroe Trail, Mystic Canyon Trail, and Lower Monroe Truck Trail is a great view over Glendora down in the south below.

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Great view of the Puddingstone Reservoir, a 250-acre man-made body of water. There is a road that runs along the perimeter of the reservoir and there is a spot to pull off the road to get a close up view of the water.

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The Marshall Canyon Trail is in La Verne, CA, starts at Oak Mesa Park and features 1,310 feet of climbing, reaching a max elevation of 2,424 feet. Known for its oak tree cover and lush terrain, it’s often referred to as "Sherwood Forest" due to its green, shady environment. The lower section is relatively flat, with more climbing occurring deeper into the canyon. For mountain bikers, there are many variations off the main trail that can add both milage and elevation to your ride. Adding the Claremont Loop, for example, can extend the ride by 4-5 miles and 800 vertical feet. The trail and surrounding area provides a refreshing NorCal feel, with shaded trails and a creek, contrasting with the typically hot and dry surrounding hills.

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In addition to creating a beautiful natural environment that offers several spots with very good views in its surroundings, such as the Frank G. Bonelli Regional Park, you can cycle around the reservoir on several paved paths. In this reservoir, you can also enjoy many water activities.

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Dedicated trail-goers will take a potato to the summit to leave as an offering to the potato gods. Check out the summit book, and the echo beneath the metal plate on the top of the tank!

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Frequently Asked Questions

What kind of terrain can I expect on mountain bike trails around Charter Oak?

The mountain bike trails around Charter Oak, California, are characterized by natural, unpaved surfaces. You'll encounter diverse landscapes including rolling hills, canyons, and mountainous backdrops. Many trails feature shaded sections, eucalyptus trees, and coastal sage scrub, often involving uphill climbs to ridgetops.

How many mountain bike trails are available in the Charter Oak area?

There are 15 mountain bike routes available around Charter Oak. These include 6 easy trails and 9 moderate trails, offering a good range of options for different skill levels.

Are there any easy mountain bike trails suitable for beginners in Charter Oak?

Yes, there are several easy trails. For instance, the Puddingstone Reservoir Dam loop from Frank G. Bonelli Regional Park is an easy 7.7-mile (12.4 km) route that circles the reservoir, offering scenic views and taking about 55 minutes to complete.

What are some moderate mountain bike trails for more experienced riders?

For those seeking a moderate challenge, the Marshall Canyon Trail loop from Damien High School is a popular choice. This 16.1-mile (25.9 km) trail leads through canyons and features significant elevation changes. Another option is the Puddingstone Reservoir Dam loop from Life Pacific University, a 15.3-mile (24.7 km) path with more elevation gain than its easier counterpart.

Are there any loop trails for mountain biking in Charter Oak?

Yes, many of the trails around Charter Oak are designed as loops. Examples include the Puddingstone Reservoir Dam loop from Frank G. Bonelli Regional Park, the Marshall Canyon Trail loop from Damien High School, and the Marshall Canyon Trail – Potato Mountain Peak loop from Damien High School.

What natural features or landmarks can I see along the mountain bike trails?

While riding, you can enjoy views of the Puddingstone Reservoir. Other notable spots include the Little Dalton Debris Basin and the San Gabriel Canyon Road Scenic View. You might also pass by the Mt. San Antonio Wildlife Sanctuary.

What do other mountain bikers say about the trails in Charter Oak?

The routes in Charter Oak are highly rated by the komoot community, with an average score of 4.6 stars from over 7 reviews. More than 200 mountain bikers have used komoot to explore the varied terrain, often praising the natural landscapes and diverse options for different skill levels.

Are there any trails that offer views of the surrounding valleys?

Yes, the View of the valley – Little Dalton Debris Basin loop from Glendora High School is a moderate 9.6-mile (15.4 km) route specifically designed to offer scenic views of the valley, passing by the Little Dalton Debris Basin.

What is the longest mountain bike trail available in Charter Oak?

The longest trail listed is the Marshall Canyon Trail – Potato Mountain Peak loop from Damien High School, which spans 19.2 miles (30.9 km) and is rated as moderate.

What is the best time of year to go mountain biking in Charter Oak, California?

Southern California generally offers good mountain biking conditions year-round due to its mild climate. However, spring and fall often provide the most comfortable temperatures. Summers can be hot, so early morning rides are recommended, while winters are typically mild but can bring occasional rain, which might affect trail conditions.

Are there any specific areas for mountain biking that connect to other cycling paths?

While the trails themselves are natural and unpaved, you might find connections or proximity to established cycling paths. For example, the End of San Gabriel River Bike Path and the San Gabriel River Greenway are nearby, offering additional cycling opportunities, though their character may differ from traditional mountain biking singletrack.

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