Start this run from the trailhead located just past the Leo Carrillo State Park's entry point, across from the parking lot that is open to day use. The trail will start out along the marked Camp 13 Trail. Very quickly after joining the trail it diverges in two directions. The trail to the right is the Willow Creek Trail and the trail to the left is the Nicholas Flat Trail
. Stay to the right on the Willow Creek Trail.
Willow Creek will then go around the hill before switchbacking steeply above Willow Creek. The trail will then converge with and rejoin the Nicholas Flat Trail
Thanks to John McKinney, The Trailmaster, for sharing this trail description. To learn more about trails in California, check out his guides at The Trailmaster Store