Custer Trail Campground sits on the north shore of Deerfield Reservoir with a boat launch and direct lake access for paddling and fishing, offering 4-5 RV sites (no hookups) and walk-in tent sites with basic pit toilets and fire rings.

Access requires a rough washboard road drive from Hill City, but the remote location rewards visitors with peaceful, uncrowded camping and excellent wildlife viewing opportunities. First-come, first-served with no cell service; bring cash for fees.