Sage Hen Flats is a free, BLM-managed access point on the Blackfoot River featuring 4 semi-developed campsites available first-come, first-served with vault toilets, picnic tables, and fire rings.

The site includes an undeveloped put-in/take-out for non-motorized boating (kayaks, canoes, rafts) and is ideal for anglers and paddlers seeking a primitive riverside experience with no fees or reservations required.