RedactedNarrative: Vessel 1 (white diagrammed boat), exited Rend Lake Marina and was on course southeast.  Vessel 2 (red diagrammed boat), was drifting 50 yards south of a buoy.  The operator of vessel 1 said he did not see vessel 2 in his path of travel due to darkness and lighting from Rend Lake Dam. The operator of vessel 2, said his boat''s occupants yelled at the oncoming boat to change course.  Vessel 1 operator noticed Vessel 2 and turned north abruptly.  The boats impacted on their starboard sides.  There were no injuries in the crash.  Property damage to both boats was incurred.  Vessel 1 operator was at fault for the accident due to not giving way to the stand on boat.  He was issued a citation for failure to yield right of way to the overtaken boat on 9/11/15.
   