In May 1897, David
Carnegie's southward line resulted in him missing
Lake Mackay entirely. His observations of the area led him to speculate that a lake would be found in the vicinity but he never glimpsed its pristine, vast expanse.
"May 9th we left the
well on a Southerly course, and were soon amongst the ridges, which continued for the next two days. The night of the 11th, having skirted a line of rough cliffs, we camped about three
miles North of a very prominent single
hill, which I named
Mount Webb, after W. F. Webb, Esq., of Newstead Abbey, Nottinghamshire. As the sun rose that morning the mirage of a lake of apparently great size was visible for 90° of the horizon — that is, from East round to South. Neither from the cliffs that we skirted, nor from
Mount Webb, was any lake visible, but it is more than probable that a large
salt lake exists in this locality, possibly connecting, in a broken line,
Lake White and Lake Macdonald."
David
Carnegie; Spinifex and Sand Ch IV
In fact it was not until 1930 that the lake was sighted by Europeans for the first time and named after its discoverer Capt. Donald George Mackay (29-Jun-1870 – 17-Sept-1958). If driving north on the
Kiwirrkurra-Balgo Road, the track reaches the southern shore of the lake about 30 kilometres from its eastern boundary. The track follows the lake shore around the south western corner of the lake and reaches a small boomerang shaped elbow which it follows and then continues west into the dune country leaving the salty expanse behind.