RedactedNarrative: V1 WAS SOUTHBOUND ON FOSS LAKE HEADED TO COPPER COVE MARINA.  V2 WAS FLOATING NORTH OF THE COPPER COVE MARINA.  OPERATOR OF V1 SAID HIS NAVIGATIONAL LIGHTS WERE ON.  OPERATOR OF V2 SAID HIS NAVIGATIONAL LIGHTS WERE ON.  A WITNESS IN THE AREA SAID V2 HAD ITS LIGHTS ON.  V1 APPROACHED V2 AND THE OCUPANTS ON V2 STARTED SHOUTING AT V1.  V1 MADE CONTACT WITH V2.  V1 STRUCK V2 WITH ITS BOW.  V2 WAS STRUCK IN THE AFT PORT SIDE.  V1 WAS PUT UP IN ITS SLIP AT COPPER COVE AND V2 WAS LOADED ON ITS TRAILER AT THE MAIN BOAT RAMP.  AREA OF THE ACCIDENT WAS APPROX 534 FEET SOUTHEAST OF THE SE LAKE POINT AND APPROX 624 FEET SOUTH OF THE SOUTH LAKE POINT AND APPROX 360 FEET SW OF THE SOUTHWEST LAKE POINT.