Shaped like a large pyramid, Diamond Peak is the highest mountain in Idaho outside of the Lost River Range. The peak attracts plenty of hikers and climbers thanks to its height of 12,197 feet, and the most popular route to the top is a class 3 scramble. Camping is available at the base of the mountain on the east side, by Badger Creek on the west side, and in the campground next to Birch Creek. Lucky visitors might spot antelope on the drive to the mountain; the valleys on the east and west sides are home to the largest herds in Idaho.

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