Elevation: 8,464 ft
Prominence: 328
This peak is not in the book. Published October 2025
Grouse Peak is the namesake peak in this area. But, interestingly, it is not the highest point on this high ridge in the northern Pahsimeroi Mountains. That honor goes to Peak 8522 just to its south. It is most easily climbed from a nearby 2-track ridge road (FSR-111). USGS Grouse Peak
Grouse Peak as viewed from the southeast. This was my descent route. Livingston Douglas Photo
Access
Same as for Peak 8522. Hike (or drive) north on FSR-111 from Peak 8522 all the way to the crest in the road as it skirts the east side of Grouse Peak. There is a cattle gate and a road junction here.
East Ridge (Class 1)
The Climb
From the road junction, follow an old 2-track road southwest then west to the summit. The concrete footers for the old lookout are still there. The USGS “Grouse 2” benchmark is also there.
Grouse Peak (right of center) as viewed from the north. Livingston Douglas Photo
The USGS benchmark atop Grouse Peak. Livingston Douglas Photo
Additional Resources
Regions: EASTERN IDAHO->Lost River Range->Pahsimeroi Range
Mountain Range: Lost River Range
Longitude: -114.0947 Latitude: 44.5652