The Oum Er-Rbia Basin is a significant river basin located in central Morocco. It is named after the Oum Er-Rbia River, which is one of the major rivers in the country. The basin covers an area of approximately 30,000 square kilometers and plays a crucial role in the region's agriculture and water supply. The basin is characterized by diverse landscapes, including mountains, plains, and valleys. It supports various ecosystems and is home to numerous plant and animal species. The Oum Er-Rbia River is vital for irrigation, providing water to local farms and contributing to the economic development of the surrounding communities.