ALEG LAKE

Aleg is flanked, towards the pontoon, by a depression, vast but not very pronounced, filled by a lake whose surface area varies according to the rainfall. Fed by the Katchi wadi and its endoreic watershed of 3,800 km², this body of water would be, like the lakes of Rkîz (in Mauritania) and Guiers (in Senegal), located on the former course of the Senegal River. In this basin, surrounded by dunes and quicksand, many migratory birds, including teal, pintail and pike-perch, gather during the northern winter.