RAPID CLASSIFICATIONS
How Rapids Are Rated
Whitewater rapids are classified using the International Scale of River Difficulty. Ratings are based on the technical difficulty of the rapids, river features, water speed, obstacles, gradient, and consequences if something goes wrong.
Water levels also affect rapid difficulty. A rapid that feels mellow at one flow can become faster, bigger, and more technical at another.
Class I & II
Class I
Easy moving water with small waves and very few obstacles. Great for beginners and younger kids.
Class II
Moderate rapids with straightforward channels, small waves, and occasional maneuvering.
Great For Families
These sections are ideal for first-time rafters and guests looking for a more relaxed float.
Monumental Trips
Salida Valley and Bear Creek typically include Class I-II whitewater.
Class III
Intermediate Whitewater
Larger waves, stronger currents, tighter maneuvering, and more exciting rapids.
Active Participation
Guests should be comfortable paddling and following guide commands.
Most Popular Difficulty
Class III offers the balance most guests want between excitement and accessibility.
Monumental Trips
Browns Canyon is our primary Class III rafting trip.
Class IV
Advanced Whitewater
Powerful rapids, continuous waves, technical maneuvering, and fast decision-making.
More Physical
Guests should be active, comfortable in water, and ready for a more demanding trip.
Continuous Rapids
Rapids often come back-to-back with fewer calm sections between them.
Monumental Trips
The Numbers is our primary Class IV rafting adventure.
Class V & VI
Class V rapids are extremely difficult, highly technical, and involve significant risk. Rescue conditions are often challenging.
Class VI rapids are considered nearly unrunnable and carry extreme consequences. These sections are rarely attempted.
Monumental Expeditions does not regularly offer Class V or VI rafting trips.
Not Sure Which Trip Fits?
We’re happy to help match your group with the right Arkansas River rafting experience based on age, comfort level, swimming ability, and adventure level.