Located in the central Middle Atlas Mountains within Ifrane National Park, Afennourir Lake is a 280-hectare mountain wetland at almost 1,800 metres altitude. It consists of the lake and surrounding wet grassland, situated on a flat graben floor bounded by steep (up to 35%) limestone ridges. The upper watershed is covered by cedar and holm oak, while lower slopes transition from steppe vegetation to grasslands. The valley floor contains fine deposits from Quaternary basaltic filling.The lake relies on surface runoff and snow melt, making it highly sensitive to climate change and water withdrawals, especially in summer. Its shallow depth, along with evaporation and infiltration, contributes to water loss and affects its balance. When full, the lake overflows into a semi-permanent stream feeding the Tigrigra wadi, emphasizing the need for protection against pollution and over-exploitation. The Site supports migratory waterbirds such as the crested coot (Fulica cristata) and ruddy shelduck (Tadorna ferruginea), as well as other waterfowl and aquatic plants. It also provides essential drinking water for the Ait Mouli community and their livestock.