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Routes
Mountain biking trails
United States
New Mexico
Los Alamos County
Los Alamos

Perimeter to Walnut Canyon Trail

Moderate

4.6

(6559)

17,177

riders

Perimeter to Walnut Canyon Trail

01:13

12.3km

270m

Mountain biking

This 7.7-mile moderate mountain biking loop in Los Alamos offers technical challenges, flowy sections, and scenic views of Pueblo Canyon.

Last updated: February 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Santa Fe National Forest

Waypoints

A

Start point

Parking

Get Directions

1

1.90 km

Technical Perimeter

Highlight (Segment) • Trail

The Technical Perimeter, as the name indicates, is the technical western side of Perimeter Trail system. This trail is mostly comprised of volcanic slickrock. It is not a fast trail, …

Tip by

2

6.89 km

Pueblo Canyon view

Highlight • Viewpoint

From this spot you get fantastic views down Pueblo Canyon. This is a great spot to sip some water, take a few photos, and admire your surroundings.

Tip by

B

12.3 km

End point

Parking

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Way Types & Surfaces

Way Types

6.20 km

4.08 km

1.18 km

854 m

Surfaces

6.92 km

4.37 km

781 m

157 m

< 100 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (2,370 m)

Lowest point (2,150 m)

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Weather

Powered by Foreca

Friday 10 July

29°C

15°C

0 %

Additional weather tips

Max wind speed: 4.0 km/h

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Frequently Asked Questions

What is the overall difficulty of this mountain biking route?

This route is generally rated as moderate, but it includes sections that are intermediate to advanced due to numerous rock obstacles and technical features. Riders should be prepared for significant elevation changes and challenging terrain.

What kind of terrain can I expect on the trail?

You'll encounter a diverse mix of terrain, from flowy sections to technical challenges. Expect rock obstacles, volcanic slick rock, and considerable climbing and descending. The Technical Perimeter section is particularly rocky, while the Woodland Trail segment offers a flowy, pump-track-like experience.

How long does it typically take to complete the route?

The route is approximately 12.3 kilometers (7.6 miles) long and typically takes around 1 hour and 13 minutes to complete by mountain bike, depending on your pace and skill level.

Where can I park to access the Perimeter to Walnut Canyon Trail?

Specific parking details are not provided in the available data, but as part of the Los Alamos County Trail Network, trailheads often have designated parking areas. It's advisable to check local Los Alamos County Parks and Recreation resources for the most accurate trailhead parking information.

Are dogs allowed on the trail?

Information regarding dog policies for this specific trail is not available in the provided data. For regulations on dogs within the Los Alamos County Trail Network, it's best to consult official local government or park websites.

Do I need a permit or pay an entrance fee to ride this trail?

As part of the Los Alamos County Trail Network, this trail typically does not require a specific permit or entrance fee for public access. However, it's always a good idea to verify with Los Alamos County Parks and Recreation for any updated regulations or fees.

What are the best times of year to mountain bike this route?

The best times to ride this trail are generally during the spring and fall months when temperatures are milder. Summer can be hot, and winter may bring snow or icy conditions, especially at higher elevations, making some sections challenging or inaccessible.

What notable features or viewpoints will I encounter?

Along the route, you'll find the challenging Technical Perimeter section, known for its rocky nature. You can also enjoy the Pueblo Canyon view, offering scenic vistas of the surrounding area as the trail wraps around the town of Los Alamos.

Does the route intersect with other trails?

Yes, the route utilizes sections of several other trails within the Los Alamos County Trail Network. You'll find yourself on parts of the Quemazon/Pipeline Loop, Guaje Ridge/Perimeter Loop, North Pueblo Bench Trail, South Pueblo Bench Trail, Upper Pueblo Trail, and Woodland Trail, among others.

Is this trail suitable for beginner mountain bikers?

Due to its intermediate to advanced rating, with significant rock obstacles and technical sections, this trail is generally not recommended for beginners. Riders should have prior mountain biking experience and be comfortable with technical terrain.

What kind of scenery can I expect while riding?

The trail is an inner singletrack loop that wraps around the town of Los Alamos, offering views of the surrounding landscape and the Pueblo Canyon view. You'll be riding through a mix of forested areas and open terrain characteristic of the region.

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