Noyade
I reckon that the area marked on that wall map isn't the airfield, but some sort of irrigation water (can still be seen on Google Maps). Isn't Tocumwal Airport the old RAAF base (Google Maps shows the old hangars and runways there) - which, on that wall map, would be just to the right of that racecourse? Also seems to tie in with this - racecourse would be just off right of piccy, low-ish down, I thunk! But it's late here
