Fishing opportunities are available within the monument. The Green and Yampa rivers contain catfish and pike. If you do fish, you need to know how to identify the four endangered native fish that live in these rivers. They are sometimes hooked by fishermen and must be immediately returned to the river unharmed. Jones Hole Creek is clear and cool, a perfect habitat for brown and rainbow trout.
Special regulations apply in Jones Hole, such as artificial flies and lures only.
All fishermen must have a valid state-fishing license and be familiar with the regulations. Swimming is not recommended in the rivers. The water is cold, with strong currents. Public pools are in Vernal, Utah, and Rangely, Colorado. Swimming and water skiing are popular at Steinaker and Red Fleet state parks 6 and 11 miles north of Vernal.