Elevation: 6,758 ft
This peak is not in the book. Published November 2022
Prospect Hill (or Prospectors Hill) sits due east of Sun Valley, Idaho and northeast of Dollar Mountain. It has a foot trail around its perimeter called the Prospect Loop Trail. Prospect Hill is most easily climbed from that trail with a short, off-trail bushwhack to the summit. USGS Sun Valley
From the junction of Sun Valley Road and Dollar Road in Sun Valley, drive 0.6 miles east up Dollar Road to its “T” junction with Elkhorn Road. Turn right/south onto Elkhorn Road and drive 1.2 miles south then east to a signed junction with Horseshoe Road. Turn left/northeast onto Horseshoe Road and drive 0.2 miles to a signed trailhead and a paved parking area for 4-5 vehicles. The trailhead doesn’t indicate which trail it is, but it is a spur trail that leads up to the Prospect Loop Trail. Park here (6,105 feet).
Southeast Shoulder/Face, Class 2
From trailhead parking area, hike north up the spur trail to reach a signed “T” junction with the Prospect Loop Trail. Go right onto the Prospect Loop Trail and follow it as it works through the thick sagebrush on the east side of Prospect Hill. Leave the trail as it crests and crosses the southeast shoulder. Bushwhack northwest through somewhat-thick sagebrush to the summit. The summit has a massive cairn.
South Ridge, Class 2
This is probably the best way to climb Prospect Hill and has the least-brushy off-trail effort. From trailhead parking area, hike north up the spur trail to reach a signed “T” junction with the Prospect Loop Trail. Go left onto the Prospect Loop Trail and follow it until it crosses the south ridge. Leave the trail and follow the ridge north to the summit.