Red/White Marker Buoy - Revised Location

[tis]

That's interesting because we have a buoy by our house that was maybe 75 feet closer to shore when we first lived here in 1984. A couple of weeks ago MP came in to do some repairs and I told him it had moved over the years and there were no rocks where it is. He informed me that they do it by GPS so it was correct. Of course back in the day who used GPS?