Selway River Trail #4 is a trailhead access point located at Race Creek Campground near Kooskia, Idaho, providing entry to a 43-mile hiking and backpacking route along the Wild and Scenic Selway River.

The trailhead offers basic amenities including an outhouse at Race Creek Campground, though potable water must be brought or treated from nearby sources.

This is a popular access point for multi-day backpacking trips into the Selway-Bitterroot Wilderness, with abundant camping spots and river access along the trail corridor.