Begin this trail by parking in the lower parking lot of RLM. The trailhead is located approximately 100 yards back down the road on the left (at the time of this description the trail sign is extremely hard to see; there is usually flagging of some sort on or near the sign).
Beginning with several switchbacks, Willow Creek Trail shows you its character right from the get go with steady, sustained rocks. Mix these in with a rapid loss of elevation and let the fun begin. Blind corners, parallel drainage ditches, and some loose sections add quite a bit of spice to the run. The whole shebang ends rather abruptly at Palisades Campground.
For runners paying attention, you'll know the end is close when the Palisades Trail
branches off to the left.
Running this trail in the opposite direction can be done, but it is a bit rugged.