The Tamanrasset River is an enormous palaeoriver believed to have flowed through West Africa as recently as 5000 years ago during the African humid period. The Tamanrasset River basin is thought to have been comparable with the present-day Ganges-Brahmaputra river basin in Asia.
Outline of the main course of the Tamanrasset along with the present-day active Nile, Senegal, Niger, Sanaga and Congo.