1. Catawba-Wateree River (N.C., S.C.)

2. Rogue River (Ore.)

3. Cache la Poudre River (Colo.)

4. St. Lawrence River (N.Y., Canada)

5. Minnesota River (S.D., Minn.)

6. St. John River (Fla.)

7. Gila River (N.M., Ariz.)

8. Allagash Wilderness Waterway (Maine)

9. Pearl River (M.S., La.)

10. Niobrara River (Wyo, Neb.)

Source: American Rivers