White Mountain is the highest summit in the Salmon River Mountains, and it's located just southwest of South Twin Peak. This route goes along the north ridge with mostly class 3 climbing, which is accessed from Twin Creek Lakes Trail and is seldom visited by visitors. The name of the mountain comes from the beautiful white rock found along the sides, while the summit itself is a pile of grayish brown perforated jagged towers and rocks. Incredible panoramic views are offered from the summit with the surrounding Salmon River Mountains, Challis National Forest, and the Frank Church River of No Return Wilderness.