Ahric ameqqran n waman ttassen seg idurar n Djerdjer uqbel n ucercer-nsen ɣef wasif n Sbaɛu; llan deg-s watas n tifrawin am Uggug n Taqsebt (160 imelyaren n m3). Tizi Wezzu tesɛa azal n 135 088 n imezdaɣ (leḥṣab n 2008) s tajumma n 2958 km²; ɣef wagi tella yiwet n temnatt yesɛan azal meqqren deg Dzayer Talemmast d Tmurt Leqbayel s umata. Tamdint n Tizi Wezzu d tamdint n temnatt i tella s ugar 100 000 n imezdaɣ i ɣures (tesɛa).