Elevation: 7,871 ft
This peak is not in the book.
Eightmile Mountain is located in the Boise National Forest. It is found northwest of the South Fork Payette River, West Spring Creek, and Warm Springs Campground.
Eightmile Mountain is a moderate hike at 4.5 miles (one way) and 3500+ feet elevation gain. The trailhead is located on the eastern side of the Warm Spring landing strip, just off of highway 21.
To get to the trailhead, turn onto FS-025 19 miles east of Lowman or 40 miles east of Stanley. The trail can also be accessed from Warm Springs Campground (which has Bonneville Hot Springs approximately 0.25 mile upstream from it). The trail is well maintained and you gain elevation quickly over the first couple miles.
After following switchbacks up to point 6868, you get the first good view of Eightmile Mountain. From this point, descend the ridge, losing about 350 feet in elevation before climbing the last 1.5 miles up to the summit. The views of the Salmon River, Boise and Sawtooth mountains are superb. It’s a fun early summer hike with lots of wild flowers and wildlife!
USGS Topo: Eightmile Mountain
Climber Trip Reports