Lone Tree Campground at Merritt Reservoir offers 140 tent sites with primitive and modern facilities spread across a scenic narrow valley 26 miles southwest of Valentine.

The campground features drinking water, fire grates, vault toilets, and a modern restroom with ADA-accessible coin-operated showers, with a dump station located at the Main Area.

Half of the campsites at nearby Beeds Landing, Boardman, and Cedar Bay are reservable, while Lone Tree operates on a first-come, first-served basis with self-registration via Iron Ranger boxes.