RedactedNarrative: V1 WAS TRAVELLING FROM WEST TO EAST, ACROSS THE COLORADO RIVER.  V2 WAS TRAVELLING NORTH, UP THE RIVER.  V1 DID NOT SEE V2 AND CROSSED RIGHT IN FRONT OF IT, CAUSING V2 TO RUN INTO V1.  NO INJURIES WERE REPORTED.  V2 AND ITS OPERATOR AND OCCUPANT FLED THE AREA.