The Mount Nimba Nature Reserve, a true cross-border treasure, stretches across Guinea and Côte d’Ivoire, at the edge of Liberia. It is dominated by an impressive mountain range that rises to 1,752 meters at Mount Nimba (also known as Mount Richard Molard), making it the highest peak in both countries. Since its creation in 1944, the area has benefited from strict protection status, symbolizing the first nature reserve of this kind in French West Africa. The reserve is often described as a genuine “water tower,” as it hosts around fifty springs that feed major rivers such as the Cavally, the Cestos, and the Sassandra. Covering about 17,540 hectares, including roughly 5,000 hectares on the Ivorian side, the reserve has maintained remarkable ecological integrity despite a complex context.

The reserve is also recognized for its outstanding universal value. Its geomorphological diversity, sub-equatorial mountain climate, and geographic isolation have fostered the emergence of numerous microclimates and varied ecosystems, ranging from dense lowland forests to grassy alpine meadows. The local flora includes more than 2,000 vascular plant species, many of which are endemic or near-endemic.

Mount Nimba’s fauna is equally remarkable. The reserve shelters over 300 vertebrate species, including more than 100 mammals, and more than 2,500 invertebrate species. Endemic species such as the viviparous toad, the aquatic shrew known as Lamotte’s otter shrew, and Lamotte’s round-leaf bat are emblematic of the site. Other notable species include the western chimpanzee, famous for its use of stones as tools, the West African lion, the pygmy hippopotamus, and a remarkable variety of birdlife, leading to the site’s designation as an Important Bird Area.

Despite its exceptional wealth, the site faces serious threats. As early as the 1990s, the granting of iron ore mining concessions endangered the integrity of the reserve, prompting its inclusion on the List of World Heritage in Danger. Parts of Liberia and Guinea have already suffered significant degradation linked to mining activities. In addition, the reserve is challenged by a lack of coordinated cross-border management, pressures from poaching, deforestation, and uncontrolled fires. Nevertheless, conservation initiatives continue.

In Côte d’Ivoire, the Center for Ecological Research has conducted surveys of bats, monkeys, and viviparous toads, and is considering the creation of a scientific research station in the Mount Nimba area. Since 2016, cooperation between the two countries has been strengthened to improve management, monitoring, and the fight against poaching.

Beyond its ecological role, Mount Nimba holds an undeniable fascination. It attracts zoologists, botanists, geographers, and travelers, all captivated by the site’s spectacular beauty and unique biodiversity. Listed as a UNESCO World Heritage Site since 1981 for the Guinean side and 1982 for the Ivorian side, Mount Nimba remains a natural sanctuary of inestimable value for conservation in West Africa.