Stonefly I is a primitive riverside campsite on the Green River in the Flaming Gorge National Recreation Area, accessible only by hiking 1. 1 miles from Little Hole Day Use Area or by boat.

The site features basic amenities including one picnic table, fire ring, two tent pads, and a portable toilet screen, operating on a first-come, first-served basis with registration required at Little Hole ($13/night April-September, $5/night October-March, plus recreation pass required).

All campers must bring their own portable toilet system, as there is no potable water or garbage facilities available.