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MTB trails
United States
Colorado
Boulder County

Gunbarrel

The best MTB trails around Gunbarrel

4.4

(36)

1,275

riders

135

rides

Mountain biking around Gunbarrel offers access to a diverse network of trails set against the backdrop of the Front Range. The landscape features open spaces, rolling prairie ecosystems, and views of the iconic Flatirons. This area provides a blend of multi-use paths and dedicated singletrack, connecting riders to various natural attractions and larger trail systems.

Best mountain bike trails around Gunbarrel

  • The most popular mountain bike trail is Boulder Valley Ranch Loop, a 9.0 miles (14.5 km) trail that…

Last updated: April 30, 2026

5.0

(2)

10

riders

#1.

Boulder Valley Ranch Loop

14.5km

01:11

110m

110m

Enjoy an easy 9.0-mile mountain bike loop at Boulder Valley Ranch with scenic views of the Flatirons and foothills, perfect for beginners.

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Easy

5

riders

Experience the Valmont Bike Park Hot Lap, a difficult 2.1-mile mountain biking route with flowing singletrack and Flatirons views.

Hard
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6.16km

00:25

80m

80m

The Legend Ridge Loop is an easy 3.8-mile mountain bike trail in Niwot, Colorado, offering gentle gravel paths and views of the plains.

Easy

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard

Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.

Hard
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Popular around Gunbarrel

Hiking around Gunbarrel

Running Trails around Gunbarrel

Cycling around Gunbarrel

Road Cycling Routes around Gunbarrel

Gravel biking around Gunbarrel

Tips from the Community

Lisa
January 29, 2024, Maxwell Reservoir

This little reservoir is a nice waypoint on your travels to or from the neighborhoods of Washington Village and Pine Hill, or nearby Maxwell Park. There's a paved trail that makes cycling here easy.

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An impressive rock formation just on the outskirts of Boulder.

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The Boulder Adventure Lodge (also known as the A-Lodge) is the closest hostel/camping area to downtown Boulder. Located just up Fourmile Canyon, the A-lodge hosts an entrance to the Betasso Preserve, which is a collection of multi use trails in the Boulder Open Space and Mountain Trails area.

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Matthew
November 12, 2023, Betasso Preserve

With multiple trailheads, parking lots, and interconnecting trails, the Betasso Preserve is one of the most frequented outdoor spaces in the Boulder Foothills area. The trails are free to use by the public, and it's easy to use to the trails to connect to other trail systems in the Boulder Open Space and Mountain Trails network.

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Fourmile Canyon Road is a popular cycling spot that connects Boulder Canyon all the way up to the "ghost town" of Gold Hill via Gold Run Road, Gold Hill Road, and the Peak to Peak Highway. This particular section of Fourmile is from Boulder Canyon to Poorman Hill Road, another popular gravel road that connects to Sunshine Canyon.

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Sunshine Canyon is a popular ride that that takes you straight from downtown Boulder up into the foothills past popular hikes like Mount Sanitas and Lions Lair. This upper section of Sunshine Canyon is gravel, but it is generally well-graded, and hard packed; it is frequently completed by local cyclists on road bikes. The only place where the gravel can be a little looser and chunkier is toward the top of the canyon by Gold Hill, so be aware when ascending or descending.

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AaronLavanchy
October 20, 2023, Somerset Trail

Somerset Trail is an easy smooth trail that it great for beginners. It's basically an out and back connecting to a small loop, but there are many options to connect this trail to others in the Niwot network. It starts with steady climb, that will give you panoramic views to west as you get above Niwot.

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AaronLavanchy
October 19, 2023, Bald Mountain

Just outside Boulder, this summit at 7,160 feet, will give you panoramic views of Boulder, The Continental Divide and the eastern plains.

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Frequently Asked Questions

Are there mountain bike trails suitable for all skill levels in Gunbarrel?

Yes, Gunbarrel offers a diverse network of trails catering to various skill levels. You'll find easy, family-friendly rides like the Legend Ridge Loop, which is 3.8 miles long and leads through open fields. For more advanced riders, there are challenging routes such as the Valmont Bike Park Hot Lap, a 2.1-mile route with flowing singletrack.

What kind of terrain can I expect on Gunbarrel's mountain bike trails?

The terrain around Gunbarrel is varied, featuring open spaces, rolling prairie ecosystems, and connections to extensive trail networks. You'll encounter multi-use paths, crushed gravel trails like the Cottontail Trail, and dedicated singletrack. Some trails, such as the East Boulder Trail, offer a mix of mellow dirt roads, doubletrack, and even short intermediate sections with steep climbs.

Are there any family-friendly mountain bike trails in Gunbarrel?

Absolutely. Gunbarrel has several family-friendly options. The Lobo Trail is frequently cited as a multi-use path suitable for beginners and families. The Boulder Valley Ranch Loop is another easy 9-mile mountain bike loop, ideal for beginners and families, offering picturesque views of the Flatirons and foothills.

Can I bring my dog on the mountain bike trails in Gunbarrel?

Many trails in the Gunbarrel area are dog-friendly, but regulations can vary by specific trail or open space. It's always best to check the local signage or the Boulder County Open Space and Mountain Parks website for the most current rules regarding dogs, including leash requirements, before heading out. For example, the City of Boulder's website provides information on specific trail regulations: bouldercolorado.gov.

What scenic views or landmarks can I expect to see while mountain biking?

Mountain biking in Gunbarrel offers fantastic, sweeping views of the iconic Flatirons and the Boulder Valley. Trails like the Boulder Valley Ranch Loop provide picturesque vistas. You can also enjoy views of the Front Range from various points, and Green Mountain Peak offers beautiful views of the nearby Indian Peaks. The Twin Lakes Open Space provides a serene setting with two small lakes.

Are there any natural attractions near the mountain bike trails?

Yes, Gunbarrel is surrounded by natural beauty. The Twin Lakes Open Space is a cherished natural attraction with walking and biking trails. The East Boulder Trail winds through rolling hills of grassland, offering opportunities for birding and wildlife viewing, including prairie dog colonies. You can also visit Boulder Reservoir for water activities or explore other lakes like Golden Ponds and Twin Lakes.

When is the best time of year to go mountain biking in Gunbarrel?

The best time for mountain biking in Gunbarrel is generally during the spring, summer, and fall months when the weather is mild and trails are dry. The region experiences distinct seasons, so checking local trail conditions is always recommended. Winter mountain biking is possible, but some trails may be closed or have snow and ice, requiring appropriate gear and caution.

Is parking available at the trailheads in Gunbarrel?

Yes, many trailheads in and around Gunbarrel offer designated parking areas. For example, the Davidson Mesa Overlook, a popular viewpoint, also provides a public bike repair station and parking. It's advisable to check specific trail information for parking availability and any potential fees before your ride.

How can I reach the mountain bike trails using public transport?

Gunbarrel's proximity to Boulder means that some trails may be accessible via Boulder's public transport system, RTD. Routes often connect to major trail systems. For specific routes and schedules to trailheads, it's best to consult the RTD Denver website or a local transit app for the most up-to-date information.

What do other mountain bikers enjoy the most about mountain biking in Gunbarrel?

The area is highly rated by the komoot community, with an average score of 4.3 stars from over 30 reviews. Reviewers often praise the sweeping views of the Front Range, the diverse trail network that caters to different abilities, and the connections to extensive trail systems. The blend of open prairie ecosystems and natural attractions also contributes to a highly enjoyable riding experience.

Are there any loop mountain bike trails in Gunbarrel?

Yes, Gunbarrel offers several loop trails that are great for mountain biking. Besides the popular Boulder Valley Ranch Loop, you can also explore the Greenbelt Plateau Trail – Community Ditch Trail loop from Boulder, which is a moderate 26.6-mile ride. Another option is the Boulder Valley Ranch Pond – Lefthand Trail loop from Boulder Open Space and Mountain Parks, an easy 9.3-mile route.

Most popular routes around Gunbarrel

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