Loon Creek Trail

This remote out-and-back route follows the rugged and beautiful Loon Creek Trail deep into the heart of the Frank Church–River of No Return Wilderness. Starting near Tin Cup, the trail winds through pine forests, alpine meadows, and rocky canyon country before reaching the Middle Fork of the Salmon River—a legendary wilderness corridor. The 41.5-mile journey offers a true backcountry experience with solitude, scenic diversity, and a strong sense of adventure. Best for experienced backpackers comfortable with long mileage, variable trail conditions, and limited amenities.

Begin your trek from the Tin Cup Trailhead, quickly joining the Loon Creek Trail as it descends through lodgepole and fir forest. Early miles are relatively gentle, with gradual elevation changes as you parallel Loon Creek through a wide, forested valley.

As you travel farther in, the landscape shifts—open meadows peppered with wildflowers give way to steeper, rockier sections where the creek cuts deeper into the canyon. Several stream crossings (some requiring wading, depending on the season) and rocky, exposed stretches keep the terrain interesting and demand attention to footing.

Approaching the Middle Fork, the scenery becomes even more dramatic, with rugged canyon walls rising around you and the rush of the river growing louder. After reaching the confluence with the Middle Fork of the Salmon River, soak in the remote beauty and enjoy a well-earned break. If time allows, explore the river corridor or just relax and savor the wilderness setting before turning around. Retrace your steps along the Loon Creek Trail back to the Tin Cup Trailhead.
Flora and Fauna
This trail passes through classic central Idaho ecosystems: dense coniferous forests, high mountain meadows, and river canyon habitats. Expect to see deer, elk, mountain goats, and possibly black bears. Watch for golden eagles and osprey soaring overhead, and in the summer, enjoy colorful displays of lupine, paintbrush, and other wildflowers.
Camping
Plenty of dispersed camping opportunities can be found along Loon Creek. Established flat spots exist near the creek banks and in open meadows. Please follow Leave No Trace practices, especially near water sources.
Considerations

• Water: Reliable water sources are available, but always filter or treat.

• Navigation: While the trail is generally easy to follow, occasional deadfall, brush, and faded sections mean a GPS or good map is recommended.

• Bugs: Mosquitoes can be fierce early in the season—bring repellent or netting.

• Weather: Be prepared for sudden changes, especially in the high country. 

• Stream Crossings: Early season runoff can make crossings difficult or dangerous—check conditions before you go.

• Permits: No permits are required for personal groups, but always double-check for any updated regulations.

Season: Late spring through early fall is the best window.