Elevation: 10,470 ft
Prominence: 1,410

Climbing and access information for this peak is on Pages 167-169 of the book. Updated September 2019
Horstmann Peak is located up Fishhook Creek. It is one of the most popular Sawtooth summits with a variety of routes to the top, ranging from a long Class 3 scramble to steep snow and ice climbs. The book describes 7 routes on the peak: South Ridge, Sickle Couloir, North Face, Northwest Buttress, Northeast Ridge, North Ridge Spur and the East Face. First ascent information is listed below. USGS Warbonnet Peak

Horstmann Peak as viewed from Fishhook Creek.
South Ridge Route, Class 3
The South Ridge Route is the easiest way to the summit but it requires the longest approach. Below you will find a few route photos.

The South Ridge is accessed from the west via the highest Stephens Lake. Climb to the ridge top between the peak and Fishhook Spire. Once you reach the ridge, you must find your way up and down toward the peak on a good goat trail.

Continue along the ridge until you reach this view of Horstmann Peak’s Southeast Face. From this point, traverse toward the summit under the tower on the left.

Climb this line to the summit.

The summit.
Sickle Couloir, II, Snow and Ice Climb
Perhaps the most sought-after route on Horstmann was pioneered by Kirk Bachman. The route is detailed on Page 168. John Platt’s trip report is linked below. It contains many photos showing this steep route.
Additional first ascent information is as follows:
Northwest Buttress: Kirk Bachman and R. Young
Additional Resources
Mountain Range: Sawtooth Range
Year Climbed: 1994
First Ascent Information:
- First Ascent Year: 1934
- Season: Summer
- Route: East Face
- Party: Robert and Merriam Underhill and Dave Williams
- Other First Ascent: North Face
- Year: 1957
- Season: Summer
- Party: Iowa Mountaineers
- Other First Ascent: Northeast Ridge
- Year: 1965
- Season: Summer
- Party: Lyman Dye and W. Boyer
- Other First Ascent: North Ridge Spur
- Year: 1971
- Season: Summer
- Party: Mike Howard and Dave Walters