 On the main Uluguru range, 50 villages touch the forest boundary and over 151,000 people are found within the mountain area, often at increasing densities at higher altitudes up to the forest boundary.The Ulugurus lie 200 km inland from the Indian Ocean.They are part of a chain of mountains in eastern Africa collectively called the Eastern Arc Mountains, which include the Taita Hills, Pare Mountains, Usambara Mountains, Nguru Mountains, Rubeho, Ukaguru, Udzungwa Mountains and Mahenge Mountains.