Warm River is a region in southeastern Idaho, located within the Caribou-Targhee National Forest at an elevation of 5,200 feet. The area is characterized by the slow-moving, spring-fed Warm River, a tributary of the Henrys Fork Snake River, which maintains a consistent water temperature year-round. The landscape features sprawling meadows, pine trees, and remnants of old railroad lines that are now integrated into the trail system, offering varied terrain for several sports like mountain biking.
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83.4km
05:53
520m
520m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

57.1km
03:50
550m
550m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

121km
09:36
1,030m
1,030m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

40.2km
03:19
530m
530m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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The Warm River region is located in southeastern Idaho, within the Caribou-Targhee National Forest. It is situated at an elevation of approximately 5,200 feet (1,585 meters) and is characterized by the spring-fed Warm River, a tributary of the Henrys Fork Snake River.
Warm River offers a variety of outdoor activities including mountain biking, hiking, and horseback riding on its extensive trail network. The Warm River itself is popular for tubing and fishing, with various trout species present.
The region features diverse mountain biking trails, ranging from gentle routes along old railroad lines to more challenging paths. Notable trails include the Jackass Loop Trail (FS 264) and the Twin Creek trail, which offers views of the Teton Mountain Range. For more details, refer to the guide MTB Trails around Warm River.
Yes, some trails in Warm River follow old railroad lines, which typically offer relatively gentle grades suitable for easier rides. These routes provide a less strenuous option for mountain bikers.
The Warm River region includes trails suitable for various skill levels, making it possible to find family-friendly options. Trails with gentle grades, often found along former railroad lines, are generally appropriate for families.
Visitors can observe the slow-moving Warm River, natural springs, and waterfalls. The landscape includes sprawling meadows, pine trees, and remnants of old railroad lines and tunnels. Some trails offer scenic views of the Teton Mountain Range.
Mountain biking trails in Warm River offer views through dense birch and pine trees, across sprawling meadows, and vistas of the Teton Mountain Range. The Jackass Loop Trail, for instance, provides scenic views as it crosses the Idaho-Wyoming state boundary.
The Warm River region is located in southeastern Idaho, within the Caribou-Targhee National Forest. It is situated near the towns of Ashton and Island Park, and is within a few hours' drive of Yellowstone and Grand Teton National Parks.
As part of the Caribou-Targhee National Forest, dogs are generally permitted on trails in the Warm River region. It is recommended to keep dogs on a leash and practice Leave No Trace principles.
Information about the Warm River Campground and the general area can be found on the U.S. Forest Service website for the Caribou-Targhee National Forest. The Ashton/Island Park District Office can be contacted at (208) 652-7442 for specific inquiries.
The Warm River region is situated at an elevation of approximately 5,200 feet (1,585 meters). This elevation contributes to the area's distinct natural environment within the Caribou-Targhee National Forest.
Yes, komoot offers guides for the Warm River region. For mountain biking, the guide MTB Trails around Warm River provides detailed information on available routes.

