RedactedNarrative: Vessel #1 was underway, heading down lake near buoy 39 when it encountered a large wake. The operator (OPERATOR1) believes it may have been a wake from one of the Lake Powell tour boats that run between Wahweap and Rainbow Bridge National Monument. OPERATOR1 misjudged the height of the wake and hit it at too great a speed. This caused the bow of the vessel to suddenly raise up at it crested the first wake wave. This, in turn, caused VICTIM, who was seated in the bow of the boat, to fly into the air and land hard on the seating in the bow. This happened again as the vessel hit a second wake wave before OPERATOR1 could slow and stop the vessel.
  
  VICTIM immediately complained of severe back pain and a passenger on the vessel contacting NPS dispatch. I was dispatched to the scene. On arriving, I observed NPS Ranger assessing VICTIM. We immobilized with a C=collar, then placed her on a backboard. We then moved her to NPS vessel 244 and transported her about 100 yards to a nearby beach where a Classic Air medical helicopter had landed. VICTIM was handed over to Classical Air and flown to Flagstaff Medical Center for medical treatment.
  