The Cache Mountain Loop Trail connects with the Fossil Creek Trail at the Windy Gap Cabin. The continues up the Fossil Creek drainage through spruce trees and open hillsides with good views. The routes is mostly off the creek, however there are some creek crossings and overflow is common. The trail will ascend steeply to the Cache Mountain Divide. Tripod trail markers are present here. From the divide, the trail goes through open meadows and creek drainages to connect with the Trail Creek Trail at the Cache Mountain Cabin.

From the Colorado Creek Trailhead, milepost 57.1 on the Elliot Highway, the trail begins at the intersection of Fossil Creek and Windy Creek Trail, 32 miles from the trailhead.