Since 1925, plants and animals found a safe haven in Djurdjura National Park. The landscapes of Djurdjura features relic forests of the endemic black pine, the M’Zaris forest, where the striped hyena lives, and Afkadou forests. The biosphere presents a mix of Savin juniper, maples, wild cherry, cedar and common yew. Mountains, deep valleys, gorges and caves hold the earliest members of the dinosaur lineage, the Rotodactylus and bones of the brown bear dating back to 420–600 A.D. which are preserved in the cave of Akouker massif. The neighborhoods of Djurdjura, hold the artificial wetlands in Bouira and Tizi Ouzou Tikdja ski resort. The reserve is characterized by a mosaic of habitats made of farmlands, rangelands and forests and the Goulmim lake (±1,700 meters), Tinzert spring and the summit of Lalla Khedidja (±2,300). The area features the leopard gorge (-1,100 meters) and Assouil gorge (-900 meters), and worshiping places in Macchabée and Tak N’Envi gorges and in Azrou N’Thor.