Introduction

Geographically, Morocco is situated in North Africa precisely with the African and the European plates which enforces a great richness, variety and complexity of Moroccan geology seeing its different structural domains.
The Middle Atlas region is characterized by its hugely diverse landscapes. As a matter of fact, its geological wealth is a considerable asset for the local development of the region. The quality of the geological outcrops makes it easy to read the history of this part of the Atlasic chain from the Paleozoic to the present day. The Middle Atlas, which constitutes an intracontinental chain whose mountainous and structural buildings are elongated essentially in the NE-SW direction, this chain is longitudinally subdivided into two structural domains separated by a major tectonic faults ” NMAF ”, which separates the tabular Middle Atlas to the NW from the folded Middle Atlas to the SE. The Paleozoic outcrops there in several buttonholes like (Bsabis, El Menzel, Tazekka, Beni Mellala…).
The Sefrou watershed in its downstream part, spreads over an area close to 405 km² with a perimeter of 127.42 km. The main watercourse originates from mountainous springs (Benima, J el Abed, Jbel l’Abd, Chaabat-Mbarek …) and drains the Middle Atlas tabular area through the city of Sefrou towards its connection with the Oued Sebou which exists at the level of the Rif southern corridor crossing different geographical areas, and different bioclimatic environments.
Using a physical characterization method with a certain set of parameters allows us to follow and better understand the hydrodynamic behavior of the Watershed.