Overview
Gash Creek Trail is a remote out-and-back through the dense conifer forest of Clearwater National Forest, following a tributary creek through terrain that receives almost no visitor traffic. The 8.6-mile route gains 1,800 feet and is rated moderate-hard, offering a genuine wilderness experience in an increasingly rare setting.
The creek drainage is superb wildlife habitat. Elk and black bear are commonly encountered in the early morning hours. The old-growth Douglas fir and western red cedar forest lining the creek is some of the most impressive in the northern Idaho forests.
The Selway River Trail offers a more famous river corridor experience for those wanting a contrast.
The Route
The trail follows Gash Creek upstream from the trailhead through alternating open riparian areas and dense forest. Multiple creek crossings are necessary; water levels are highest in May and June. The trail gains elevation steadily throughout, with the steepest section in the upper mile.
When to Visit
June through October. Creek crossings can be challenging in high-water years before mid-June. Fall is excellent for wildlife viewing during the elk rut and for the color change in deciduous streamside vegetation.
Practical Details
No facilities at the trailhead. Water from Gash Creek must be treated. Dispersed camping is permitted. Bear spray is advisable given active bear habitat. Review bear canister requirements for proper food storage.
Getting There
From the Clearwater National Forest road network, follow forest roads to the Gash Creek Trailhead. High-clearance vehicle required. Contact the Clearwater Ranger District for directions and current road conditions.
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.