[1] The hydronymy of the Oued Isser is very interesting from the point of view of the various linguistic appellations that designate it (Berber, Latin, Arabic and French).
[2] The Oued Isser is the receptacle of the waters of the southern slope of the Khachna massif and the Blida Atlas.
The three main rivers that contribute to the formation of Oued Isser are: The first, on the side of Medea: Wadi Malah, also formed by three other small rivers: Wad Ladrech, whose source is in the Ouled Trif, on the side of Medea; The Wadi El Hammam, which originates in the Ouled Malel, occupies the center; Oued Meleh, which originates in Si Mohamed Ghoglath; The second river is called Oued El Meleh or Oued Yaggou; Its main source is in Ouled Mouby, in Ain Nar.
This river is placed between the preceding and the following; And the third Oued Zegkrouat; The main source near Sour El Ghozlane, in Bouid-Saël, in the Ouled Ferah.
[3] A reservoir dam was built in 1987 on the course of Oued Isser at the level of the commune of Béni Amrane.