RedactedNarrative: Operator 1 was operating a private rafting trip with 6 passengers in Bighorn Sheep Canyon on the Arkansas River. Vessel 1 was traveling down Spikebuck Rapid when it hit a large hydraulic sending Operator 1 and all 6 passengers into the water. Victim 1 struck several large boulders in the water resulting in multiple breaks in their humerus. Victim was wearing a properly fitted PFD and helmet. Victim 1 climbed out of the river themselves with rangers present. Victim 1 was given first aid on scene and then was transported to a hospital by private vehicle where they received further medical attention.