Wallace Falls Trail Run follows a loop course, with an out and back near the middle of the first loop. Runners will start at the Wallace Falls trailhead, run up the Woody trail, out the upper grade (logging road) to the Wallace Lake aid station, down the Greg Ball trail and the RR Grade trail back to the start/finish and trailhead aid station. On the first loop, at the Wallace Lake aid station, runners will also run out to Jay Lake and back, then continue the loop. Half marathon runners will have a short out and back on the RR grade before turning onto the Woody trail. Runners doing the 22.4 mi will run a second loop without the Jay Lake out and back. Runners doing the 50 km will run 2nd and 3rd loops without the Jay Lake out and back. The 50k may actually be closer to 52k.