Udzungwa is the most significant example of the natural world of the Eastern Arc Mountains that run in a chain through the whole of Tanzania. The forest makes Udzungwa unique in East Africa, and there is no other place with unbroken series of wood stretching from an altitude of 250 meters up to more than 2000 meters.
There are several species among the flora and fauna that are endemic to Udzungwa including an endangered Iringa red colobus monkey and the Sanje crested mangabey.
