Mount Nimba Strict Nature Reserve, a UNESCO World Heritage Site located on the border of Guinea and Côte d'Ivoire, spans 175.4 km² and is known for its exceptional biodiversity. Established in 1943, the reserve is home to unique ecosystems, including forest, savannah, and montane regions. It shelters over 2,000 plant species, 680 vertebrates, and more than 2,500 invertebrates, many of which are endemic, such as the Nimba viviparous toad and Nimba otter shrew. The reserve is also significant for its rich wildlife, including rare species like the West African lion, pygmy hippopotamus, and western chimpanzee. Its highest peak, Mount Richard-Molard, reaches 1,752 meters and offers diverse microclimates due to varying altitudes.