The treaty of the Tafna (1837) gave Tlemcen to Abd-el-Kader, but, war being renewed in 1842, Tlemcen was definitely occupied by the French, under whom it has prospered.
Among the less important rivers which empty into the Mediterranean are the Macta, the Tafna, the Harrach and the Mazafran.
The Tafna (about ioo m.) rises in a large cavern in the mountains south of Tlemcen and flows N.E.
By the signature of the celebrated treaty of the Tafna (June 1, 1837), Bugeaud made peace with Abd-elKader.
Abd-el-Kader maintained that the French had thus violated the treaty of the Tafna, and began the war again.