The reserve consists of 2,801 hectares in 6 mountain forests on
Grande-Terre, Mayotte's main island. The nature reserve includes 51% of Mayotte's reserve forest area and 7.5% of Mayotte's total land area. The protected areas include the island's highest peaks, which are both home to the island's most intact forests and the sources of most of the island's rivers and streams. The six forest areas are: •
Dziani Bolé and Hachiroungou on the island's northwest; •
Mount Mtsapéré (572 m), which is home to Mayotte's largest remaining forest; •
Mount Combani (481 m) •
Mount Bénara (660 m), Mayotte's highest peak; • Sohoa forest on the island's western coast; and •
Mount Choungui (594 m) in the southern part of the island. ==Flora and fauna==