RedactedNarrative: The operator, identified as Operator and an unknown adult male passenger were boating in the boulder Basin on Lake Mead on 7/25/2020. The vessel (V1) was borrowed from the registered owner. Sometime around 2000 hours, V1 began to take on water which swamped and capsized. 
  
  Witnesses were on another vessel passing by. Witness 1 said as they approached, two men were sitting on the bow of V1 with only one wearing a PFD. There was a significant amount of water in the hull and as they got closer V1 began to turn and capsize. Witness 1 and Witness 2 pulled the two men out of the water. Witness 1 said neither of the men spoke any English and did not appear to be injured. Witness 1 reported the incident to National Park Services. He began to take the two men to the harbor when another vessel flagged them down. The two men board the other vessel, whose operator also did not speak any English, and left.
  
  V1 was towed into shore the next day. V1 did not have any significant signs of damage that would suggest a large impact occurred. V1 had a 115 HP motor on it. V1''s capacity plate allows a maximum of 90 HP. It is unknown if the size of the engine contributed to the incident. There was a language barrier with the operator and officers investigating were unable to determine the cause(s) of the swamping.