SE Ridge
The Southeast Ridge can be done virtually year round, but trying it from December to March will make for a challenging half day scramble. From the Rock Creek Dam, follow the drainage through a forested area from 7200 to 8600 feet. A usage trail is very apparent, particularly after the first section and is most used by those approaching the North Face Route on Borah. As you leave the forested area on the south slopes of Al West, traverse the scree east utilizing herd trails. Turn north and shoot for the ridgeline (very steep) just NW of Pt 9774. Follow the ridgeline around and across rock outcroppings and small towers toward the northwest. Class 3 should be the most difficult scrambling you'll encounter. Near 10,600 feet, turn directly north and ascend the steep south slopes. The summit is broad and offers amazing and unique views of the Lost River Range, Pahsimeroi Range, Lemhi Range, White Knob, Pioneer, and White Cloud Ranges. The North Face of Borah is visible for the whole of the Southeast Ridge.
Southeast Ridge Route: 4.5 miles and 4340 feet gain (one way)
Lost River Range


