The Algerian town of Oued Sely is administratively affiliated to the state of Chlef, and like the regions of the homeland, it suffered from the ugliness of French colonialism, which left its bloody effects on its land. The town is characterized by a unique natural composition that includes the evergreen mountain heights and the plain areas, which are characterized by the fertility of its soil, which is why the Sully Valley is famous for agriculture, and is the first source for many types of fruits and citruses.