RedactedNarrative: I, Game Warden 1, with the Nevada Department of Wildlife (NDOW) was on duty on a patrol vessel with Game Warden 2 at the Lake Mead National Recreational Area on June 12th, 2020.  I heard a call from the National Park Service''s (NPS) dispatch that a vessel had swamped near Roadrunner Cove at approximately 1430 hours. 
  
  The vessel was found capsized in a vertical position with its bow above water. We took 11 passengers from shore onto our patrol vessel and then to Hemenway Harbor. No one was injured. 
  
  The operator said he was trying to leave the shoreline with 9 people onboard and 2 people on shore. Two large waves came over the side of the vessel and swamped it. The occupants were able leave the vessel and swim to shore. The vessel rotated once swamped to the capsized position found.