It protects a portion of the Ethiopian Highlands and includes montane forests, subalpine heath, and alpine grasslands and shrublands.

The dry evergreen forests are interspersed with areas of mixed plantations of native and exotic trees between 3181 and 3340 meters elevation.

[5][6] Other mammals found common in Dhera Dilfekar block and Chilalo-Galama Mountain Range includes Spotted hyenas, Greater Kudus, Lesser Kudus, Egyptian mongooses, White-tailed mongooses, Black-backed jackals, African civets, Abyssinian hares, Bohor reedbucks, Leopards, Servals, Caracals, Grivet monkeys, Grey duikers, Klipspringers, Rock hyraxes, Common warthogs, and Olive baboons.

[citation needed] The Arsi Mountains National Park consists of 99 bird species under 39 families that are recorded with the blocks.

Birds species that are common here includes Helmeted Guineafowl, Laughing dove, little bee-eater, Black wood hoopoe, Eastern grey woodpecker, Grey-headed sparrow, Shining Sunbird, Rüppell's long-tailed starling, Red-cheeked cordon-bleu, Speckled mousebird, Ring-necked dove, Black kite, and Long-crested eagle.