Colorado River Rapids Rating. To clarify and simplify this process all whitewater rapids are rated on a scale of i to vi. This scale ranges from flat float trips with very little whitewater to more intense with extremely large waves.
The class 1 10 system that is used in the grand canyon roughly parallels classes i v on the international scale of river difficulty isrd. After a class vi rapids has been run many times its rating may be changed to an appropriate class 5 x rating. They are accustomed to guiding trips for seasoned rafters and those who ve never dipped a paddle in the water.
Whitewater rafting rating scale.
Each river section we run has a different rating. See pictures and our review of colorado river rafting. Green river in desolation. Colorado river and trail expeditions crate since 1971 website reviews motor paddle hybrid custom kayak support hiking or natural history available 3 14 days upper lower full bottom take out at whitmore or lake mead travel hub las vegas 1 479 4 day motor 3 670 14 day hybrid canyoneers since 1936 website.
