RIVER RATINGS 

Rivers are rated using roman numerals I to VI according to the International Scale of River Difficulty. Note also that a river's level of challenge changes with fluctuations in water levels; a river rated Class IV at medium water levels might resemble a Class III river at lower water levels, while at higher levels, it might look more like a Class IV+.

***Note that multi-day expeditions can have a wide variety of rapids on a single trip, from class I to class V, so check with your outfitter to get details***

First-time and veteran rafters alike thrive on class II, III and some class IV rivers and rapids. Class V river trips--especially for paddlers--usually require two or more previous trips and previous Class IV experience. When booking your rafting trip with a Rafting America company, make sure you let the outfitter know your comfort and experience level so they can recommend the right trip for you.