Tallest Mountains in Idaho

Idaho’s highest peaks are famously grouped into the “Twelve-ers”—a collection of nine summits that exceed 12,000 feet. Most of these are located in the Lost River Range, a rugged and steep chain of mountains in the central part of the state.

Rank	Mountain Peak	Elevation	Mountain Range
1	Borah Peak	12,662 ft	Lost River Range
2	Leatherman Peak	12,228 ft	Lost River Range
3	Mount Church	12,200 ft	Lost River Range
4	Diamond Peak	12,197 ft	Lemhi Range
5	Mount Breitenbach	12,140 ft	Lost River Range
6	Lost River Peak	12,078 ft	Lost River Range
7	Mount Idaho	12,065 ft	Lost River Range
8	Donaldson Peak	12,023 ft	Lost River Range
9	Hyndman Peak	12,009 ft	Pioneer Mountains
10	Castle Peak	11,812 ft	White Cloud Mountains
11	Ryan Peak	11,714 ft	Boulder Mountains
12	Mount Cramer	11,587 ft	Sawtooth Range
13	Dickey Peak	11,141 ft	Lost River Range
14	Thompson Peak	10,751 ft	Sawtooth Range
15	Mount Heyburn	10,229 ft	Sawtooth Range
16	Devil’s Bedstead West	11,075 ft	Pioneer Mountains
17	Glassford Peak	11,602 ft	Boulder Mountains
18	Kent Peak	11,664 ft	Boulder Mountains
19	Bell Mountain	11,612 ft	Lemhi Range
20	Shelly Mountain	11,278 ft	Lemhi Range