Willow Creek Campground Access provides a primitive 9-site first-come, first-served campground on Forest Service Road 268 near the north end of Arrowrock Reservoir, featuring picnic tables, fire rings, and vault toilets but no potable water.

Access via the narrow, rough FS Road 268 requires cautious driving with sharp corners and steep drop-offs; the road is typically open late May through September and closed by snow in winter.

The location offers direct access to the Middle Fork Boise River and Arrowrock Reservoir for fishing and swimming, though visitors should arrive early during peak season as the small campground frequently fills, especially on weekends.