Lake Disappointment, satellite image. North is at top. Dry salt deposits are white, while various levels of moisture from salt-encrusted water to extremely salty liquid water, are blue. The surrounding desert sands and rocks are various shades of brown. Lake Disappointment (blue/white, upper left) is an ephemeral salt lake in one of the most remote areas of Western Australia. Its name supposedly comes from an early explorer who found the lake in 1897, and was disappointed to find a lake of undrinkable salty water. The area shown in this image is around 60 kilometres wide. The image data includes infrared wavelengths, and was obtained on 31 December 2000, using the ASTER sensor on the Terra satellite.