Close Encounters of the ??? Kind

This was sometime during the fall of 1977. I was six years old.  My father was stationed at Ft. Wayne, Indiana.  Our family was late night fishing at a lake near the military installation.  The lake was in a secluded wooded area.  The approximate time was 11:30 p.m. I recall that it was a clear and cool night.  The object first appeared in the distance flying military crest along the mountains.  We could only see the lights which were approximately 5-8 miles away.  My father, an aircraft mechanic for the Army, was not sure of the object.  He stated that it was moving too fast for a helicopter and flying much too low and fast to be a prop aircraft.  We ignored it after that it wasn’t until 15 minutes later the object was hovering near us at the lake.  It was approximately 100 ft from our location, in the open observing us.  We remained motionless and stared at the craft during the entire duration.  The object was hovering 50 ft off the ground.  It was a disc shaped objec! t about 75 ft in diameter, with domes above and below the main hull.  Lights of various colors flashed around the domes.  The craft was silent and remained hovering for 10 mins before lifting off slowly, heading away from our location then accelerated quickly out of sight.  I will never forget this night.