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Routes
Mountain biking trails
United States
Idaho
Fremont County

Warm River Butte Loop

Moderate

3.4

(2)

27

riders

Warm River Butte Loop

03:19

40.2km

530m

Mountain biking

This moderate 25.0-mile mountain bike loop in Caribou-Targhee National Forest offers elevated views and varied terrain.

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

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1

20.1 km

Warm River Butte

Highlight • Summit

Warm Creek Butte offers elevated views of the surrounding Targhee National Forest. There are bears in the area so call out for bears, ride with a friend, and bring bear spray!

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B

40.2 km

End point

Parking

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Way Types & Surfaces

Way Types

26.2 km

13.9 km

128 m

Surfaces

26.2 km

10.4 km

1.96 km

1.48 km

128 m

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Elevation

Elevation

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Weather

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Wednesday 15 July

29°C

16°C

-- %

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Frequently Asked Questions

Where can I park to access the Warm River Butte Loop?

While specific parking areas for this exact loop aren't detailed, mountain biking routes in the Warm River area typically start from various points along Fish Creek Road or other forest service roads within the Targhee National Forest. Look for designated trailhead parking or pull-offs that allow safe access without obstructing traffic or private property. Always check local signage upon arrival.

Is the Warm River Butte Loop suitable for beginner mountain bikers?

The Warm River Butte Loop is rated as moderate. It incorporates varied terrain, including a steep climb from Fish Creek Road and some sections that can be steep and rocky, particularly as you descend from the butte. Parts of the Warm River mountain biking trails are considered intermediate due to ruggedness and limited maintenance. While not impossible for a fit beginner, riders should be prepared for challenging sections and potentially less defined paths.

What kind of views and natural features can I expect on this route?

Riding across the butte offers elevated views of the surrounding Caribou-Targhee National Forest. The area is known for its beautiful scenery, including sections that traverse cattle pastures, flat land with ponds, and areas with old-growth ponderosa pine and mixed conifer forests. You'll also pass by the Warm River Butte summit, providing a distinct perspective of the landscape.

What is the terrain like on the Warm River Butte Loop?

The terrain is quite varied. You can expect a steep climb originating from Fish Creek Road, followed by an easier, more gentle downhill section as you traverse the butte. As you descend, the trail can become steep and rocky in places. Further along, below the Camp Ridge junction, the trail is more defined, though some sections might still require careful navigation. Overall, it's a rugged, backcountry mountain biking experience.

What is the best time of year to mountain bike the Warm River Butte Loop?

The best time to mountain bike this loop is typically during the warmer months when the trails are free of snow. During winter, these trails are often used for cross-country skiing and snowshoeing. Always check local conditions before heading out, as some sections can be less popular and might take longer to dry out after rain or snowmelt.

Are there any permits or fees required for mountain biking in Caribou-Targhee National Forest?

Generally, there are no specific permits or fees required for mountain biking on most trails within the Caribou-Targhee National Forest. However, it's always a good idea to check the official Fremont County, Idaho website for any updated regulations or specific area closures before your trip. You can find more information at fremontcountyid.gov.

Is the Warm River Butte Loop dog-friendly?

While specific regulations for dogs on this exact loop are not detailed, trails within the Caribou-Targhee National Forest generally allow dogs. It's crucial to keep your dog under control, preferably on a leash, to protect wildlife and ensure a pleasant experience for all trail users. Always pack out any waste.

What wildlife might I encounter, and what safety precautions should I take?

The Warm River area is part of a natural habitat, and bear sightings are possible. It's advised to take precautions such as carrying bear spray and riding with a companion. You might also encounter other forest animals. Always be aware of your surroundings and make noise to avoid surprising wildlife.

Does the Warm River Butte Loop connect with other trails?

Yes, the route incorporates sections of other well-known paths. Approximately 17% of the loop follows the Great Divide Mountain Bike Route, 32% is on Warm River Butte Road, and 20% utilizes National Forest Development Road 158. This integration offers a diverse riding experience.

What makes the Warm River Butte Loop a unique mountain biking experience?

This loop stands out for combining challenging climbs with rewarding downhill sections across a butte, offering elevated perspectives of the Targhee National Forest. Its less popular nature on some singletrack sections provides a sense of solitude and a true backcountry riding experience, away from more crowded trails.

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