Devil's Elbow loop
You are about 7.3 miles from the start of the ride. Devil's Elbow splits right and left. Feel free to go either way because the trail makes a loop and you will end up here again on your way back. The loop is about 1 mile long.
Once you have finished the loop and have returned to this point, finish the ride by going to POI #16 (I recommend going right and finishing the Old Ute trail loop), then POI #15, then POI #14, then POI #6. From POI #6 you will be back on the Castle trail. Follow the Castle trail all the way back down to the lower trailhead parking where you started the ride.
Total length of the ride as described is about 12 miles.