The Doubletop Waterfall Spur Trail #405.3A begins at an intersection with the Doubletop Walrod Spur Trail #405.2A and the Waterfall Cutoff Trail #638 and ends at an intersection with the Doubletop Trail #405. You will see beautiful wildflowers during the summer months as you ascend this connection trail. A loop of about 4 miles can be accomplished by combinding this trail with the Doubletop Trail #405, the Doubletop Walrod Spur Trail #405.2A. Geo-Ref Trail Map Geo-Reference Instructions