Borah Peak (also known as Mount Borah) is the highest mountain in Idaho. It is located in the central section of the Lost River Range within the Challis National Forest. It is named for William Edgar Borah (1865-1940), U.S. Senator from Idaho serving from 1907 to 1940.
On October 28, 1983 a magnitude 7.3 earthquake struck the Borah Peak area. The earthquake lifted Borah Peak . The peak was scarred on the western side and as of May 2008 the mark is still visible.
The normal route on the southwest ridge is a strenuous hike for the most part until one reaches an arête just before the main summit crest. This point is known as "Chickenout Ridge" as many people will abort the attempt once they see the hazards up close. This dangerous crossing involves a traverse over snow, with steeply slanting slopes on either side. An ice axe is strongly recommended for this section. Parties should turn back if there is any doubt about being able to make the crossing.
Borah Peak's north face is one of Idaho's only year-round snow climbs and provides a much greater challenge than the normal route. The face features a number of grade II class 5 routes on mixed terrain.