|Elevation||12,668 ft (3,861 m) NAVD 88|
|Prominence||5,982 ft (1,823 m)|
U.S. state high point
|Location||Custer County, Idaho, U.S.|
|Range||Lost River Range|
|Topo map||USGS Borah Peak|
|First ascent||1912 by T.M. Bannon|
Borah Peak (also known as Mount Borah or Beauty Peak) is the highest mountain in the U.S. state of Idaho and one of the most prominent peaks in the contiguous states. It is located in the central section of the Lost River Range, within the Challis National Forest in eastern Custer County.
The mountain was nameless until it was discovered to be higher than Hyndman Peak, previously regarded as the state's highest point. In February 1934, the U.S. Geological Survey named it for William Borah, the prominent senior U.S. Senator from Idaho, who had served for nearly 27 years at the time. An outspoken isolationist, the "Lion of Idaho" ran for president two years later in 1936, but did not win the Republican nomination, and died in office in 1940.
1983 earthquake 
On Friday, October 28, 1983, a magnitude 7.3 earthquake struck the Borah Peak area at 8:06 am MDT. The earthquake lifted Borah Peak over 7 feet (2.13 m). The peak was scarred on the western side and, as of July 2010, the mark is still visible. Two children in Challis were the only fatalities of the quake, struck by falling masonry while walking to elementary school.
The normal route involves ascending 5,262 vertical feet (1604 m) from the trailhead to the summit in just over 3.5 miles (5.6 km). This route on the southwest ridge, the most popular route, is a strenuous hike for the most part until one reaches a Class 4 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. In the cooler seasons 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.
See also 
- Outline of Idaho
- Index of Idaho-related articles
- List of U.S. states by elevation
- Mountain peaks of North America
- Mountain peaks of the Rocky Mountains
- Mountain peaks of the United States
- List of Ultras of North America
- List of Ultras of the United States
- Rocky Mountains
- 1983 Borah Peak earthquake
- "Beauty Reset". NGS data sheet. U.S. National Geodetic Survey. Retrieved 2008-04-08.
- "Borah Peak, Idaho". Peakbagger.com. Retrieved 2008-04-08.
- "Borah Peak". IdahoSummits.com. Retrieved 2008-12-27.
- "Elevations and Distances in the United States". United States Geological Survey. April 29, 2005. Retrieved 2009-03-28.
- "USA Lower 48 Top 100 Peaks by Prominence". Peakbagger.com. Retrieved 2012-05-04.
- "Named for solon: Idaho's highest mountain be called "Borah Peak"". Lewiston Morning Tribune. Associated Press. February 12, 1934. p. 1.
- "Idaho's highest peak eternal memorial to Borah". Lewiston Morning Tribune. January 26, 1940. p. 1.
- "Summary of 1983 Borah Peak Earthquake". University of Utah Seismograph Stations. Retrieved 2006-09-14.
- "Historic Earthquakes, Borah Peak, Idaho". Earthquake Hazards Program, United States Geological Survey. Retrieved 2012-05-04.
Faulting information: http://geology.gsapubs.org/content/12/11/664.abstract