| Horstmann Peak | |
| Photo Alt: | A photo of Horstmann Peak viewed from the northeast |
| Elevation Ft: | 10475 |
| Prominence Ft: | 1430 |
| Parent Peak: | Mickey's Spire |
| Location: | Custer County, Idaho, U.S. |
| Range: | Sawtooth Range |
| Map: | USA Idaho |
| Coordinates: | 44.1127°N -115.0012°W |
| Topo: | USGS Warbonnet Peak |
| Easiest Route: | Scrambling, |
Horstmann Peak, at 10475feet above sea level is the 11th highest peak in the Sawtooth Range of Idaho. The peak is located in the Sawtooth Wilderness of Sawtooth National Recreation Area in Custer County. The peak is located 1.85miles south-southeast of Mickey's Spire, its line parent. It is also 2miles south of Thompson Peak and 1.35miles north of Braxon Peak.[1] [2]