RedactedNarrative: I Game Warden had just started my patrol shift on Lake Mead in the Boulder Basin area on Sunday April, 17th 2016. I was heading southbound out of the Lake Mead Marina towards Black canyon and rounding the southern side of the Boulder Islands. A 911 call was made regarding a vessel in Boulder Basin taking on water. I heard the call and responded, the location of the vessel in distress was not far from my location. Water conditions were fairly calm, winds were less than 10 mph out of the south, and water temp was approximately 62 degrees.
  
       On scene I noticed the stern of the Vessel sitting very low in the water. I would have been unable to tow the vessel back to the marina due to the fact that it was too far. I decided to tow the vessel to the closest beach area to avoid having the vessel sink in over two hundred feet of water. I secured my tow line to the bow eye of the vessel and proceeded to tow it approximately ½ mile to the Beehive Island area. The tow of the vessel was without incident and I was able to secure the bow of the vessel on the beach.
  
       This vessel (V1) is a 33'' Formula motorboat with an enclosed cabin. This vessel is of fiberglass construction and it is powered by two inboard v-8 engines paired to two separate external stern drive units. This vessel was found taking on water in Lake Mead National Recreation Area. Specifically this vessel was in Boulder Basin approximately 1/2 mile north of Beehive Island. Upon my arrival to the scene I found V1 abandoned with both of its occupants on a good samaritan vessel, there was an audible bilge alarm sounding from V1 and it was obvious that the stern of the V1 was sitting low in the water. No Visible defects were noted on the vessel as I approached.
  
       Based on physical evidence, witness statements and my investigation there were no violations of any Inland Navigation Rules, nor were there any violations of NRS in this case. The vessel while under power struck a submerged object causing the outdrives and bellows housing to be compromised.