Man-made lakes in the Sahara Desert named the Toshka Lakes.
In 1978 Egypt began building the Sadat Canal NW from Lake Nasser to allow water levels higher than 178 metres to be drained off into a hollow at the south end of the Eocene limestone plateau. In the late 1990s, water began flowing through the Sadat Canal into the Western Desert.
Astronauts began noticing the first, easternmost lake growing in November 1998. By late 1999, three additional lakes formed successively westward, and the westernmost lake started forming sometime between September 2000 and March 2001.
