RedactedNarrative: I gathered information regarding a boat accident that was reported. Investigation was conducted and a report was filed.
  
  Initial contact:
  At approximately 0800 on Sunday, June 16, 2019 in Bullfrog, UT, I (Ranger, Boating Area Supervisor at Lake Powell) was notified by National Park Service (NPS) Dispatch of a vessel that had reported hitting a rock in Halls Creek Bay on Lake Powell. The dispatcher stated that they were going to head back to Bullfrog (via houseboat) and that there weren't any injuries. I requested dispatch contact an NPS Ranger once one came on duty to take the report, due to conflict with a separate boat accident investigation that required me to head out on the lake. As I was leaving the Bullfrog Government Docks several hours later, I was waved down by an individual in a white SUV pulling a boat trailer. He identified himself as the party that had contacted NPS Dispatch regarding the boat accident. He stated that no one had gathered any information from him yet. I parked my patrol vehicle, and started gathering information from both individuals.
  
  Narrative and Investigation:
  Operator was operating a 22ft. Monterey Motorboat with his father on board at approximately 0730 Sunday morning in Halls Creek Bay. He stated that they hit a rock, which Operator estimated was approximately four ft. under the water and that were about half way down Halls Creek Bay. Operator stated they were in the middle of the bay and not too close to shore, and that the rock completely took off the motor and prop. He further stated "Water had been rising 15 inches a day and it was our first day our here with that rock not visible". 
  
  Father also stated that the rock was not able to be seen. Operator estimated the speed of the vessel during the accident was approximately 25-30 mph. They stated that the vessel was towed into Bullfrog by their houseboat (they had been camping in Halls Creek Bay). Father is the owner of the vessel. No injuries were reported, and neither individual on board was wearing a life jacket. A vessel inspection was conducted on the vessel and all was found to be in compliance. Damage to the vessel was extensive, especially the motor unit and motor case, the prop, the prop was also missing as well. All the damage around on the stern area of the boat, mainly with the motor unit and prop. See damage section of this report for more of the damage to the vessel. See attached pictures, and witness statements.
  
  Conclusion:
  I cleared the scene after gathering witness statements, interviewing the operator and passenger, and taking pictures of the damage on the vessel involved. Based on my investigation, pictures, the interviews with both individuals and their witness statements, I believe a miscalculation of water levels and hazards was a significant factor in this boating accident. The quickly rising water levels this time of year can mask and cover hazards in the lake, and this was a factor in the accident.
  
  End of Report
  