Overview
The Selway River Trail enters the heart of the Selway-Bitterroot Wilderness through Clearwater National Forest, one of the largest roadless areas in the lower 48 states. The 12-mile out-and-back follows the pristine Selway River through old-growth cedar and fir forest with a remote wilderness character that's increasingly rare in the contiguous United States.
The Selway River is exceptional: clear, cold, and flowing entirely through protected wilderness. It supports wild steelhead and salmon runs and is largely unchanged from what Lewis and Clark recorded when they passed near this drainage in 1805.
The Lochsa Historical Trail offers a companion river corridor experience with more historical interpretation and a lower rating.
The Route
From the Selway Falls Trailhead, the trail follows the river upstream through towering old-growth conifers. The first few miles are the most dramatic, with impressive canyon walls and constant river views. The trail gains elevation gradually before the middle section flattens along the river bottom. Return via the same route.
When to Visit
June through October. The Selway Falls area is accessible in late spring, but the trail beyond can retain snow into early June in heavy years. Fall is outstanding: the river runs clearer, the crowds (minimal to begin with) disappear, and the forest takes on rich autumn tones.
Practical Details
Vault toilet at the Selway Falls Trailhead. No fee. Dispersed camping is permitted throughout the wilderness. Bear canisters or hang systems are essential in this active bear country. Cell service is unavailable. Review Leave No Trace principles.
Getting There
From Lowell, Idaho, drive east on the Selway Road (forest road along the Selway River). Follow approximately 20 miles to Selway Falls. High-clearance vehicles are recommended on the final section.
Leave No Trace
This trail receives enough use that following Leave No Trace principles is important for preserving the experience for future visitors. Stay on the marked trail to prevent erosion. Pack out all waste. Avoid camping within 200 feet of water sources or the trail. Use existing fire rings only where campfires are permitted, and check current fire restrictions at checking conditions before you go before any visit. The trail and surrounding terrain remain in good condition because previous visitors have respected these norms.
Safety Considerations
The moderate-hard rating reflects the trail's general character under typical conditions. Weather, seasonal snow, and trail conditions can change the experience significantly. Carry the 10 Essentials on any full-day outing. Inform someone of your plans and expected return time before heading out, particularly on longer or more remote trails. Cell service varies throughout Clearwater National Forest and may be unreliable in canyon bottoms or remote terrain.