Would never have got it without your last clue Jack!
Lake Ballard is located 49.3kms NorthWest of Menzies, 166.47kms NorthWest of Kalgoorlie-Boulder, 170.46kms South of Leinster and 282.17kms NorthEast of Mukinbudin, in the state of Western Australia.
Salt Lake 51km from Menzies. Significant for its 51 sculptures by Antony Gormley , who scanned the locals and mapped there bodies in 3D, then reduced them to 2/3rds there normal size. The finished product is a sculpture refered to as the insider. The cast is an alloy made from molybdenum, vanadium and titanium , materials that are found in the Archean Rock of W.A. Best time to view the sculptures are sunset, sunrise and on a full moon!!