This outing starts at Big Fog Mountain Trailhead in Idaho County. From there, you will go straight up the ridge and over Big Fog Mountain on trail 343, and then continue on the main ridge to the north towards South Three Links Lake and Fenn Mountain. This is the highest point in the Selway Crags and offers a lot of route possibilities. Eventually the trail will vanish, but it forms again as the ridge narrows and peels off the east side on its way to Legend Lake. Expect the trail to be a bit spotty and sometimes covered in snow, so cross country travel may need to be done. You can camp at Legend Lake before the climb to Fenn Mountain, or you skip the lake entirely and just continue on the ridgeline to a small saddle above the lower South Three Links Lake.