The topography is hilly. The forest extends from altitude 200 m asl.
Five from six globally threatened species live in this area (Lesmana et.al. 2000). New discovery in this century for Wetar Ground-dove Gallicolumba hoedtii also from this area. Follow up survey is needed especially for Timor Black Pigeon Turacoena modesta,Timor Imperial Pigeon Ducula cineracea, Yellow-crested Cockatoo Cacatua sulphurea, Wetar Ground-dove Gallicolumba hoedtii and Timor Green Pigeon Treron psittacea. Two of new species for Timor Island is Black-eared Cuckoo Chrysococcyx osculans and Eyebrowed Thrush Turdus obscurus live in this area. This area is one of the most threatened site in Timor.
Habitat and land use
Eucalyptus urophylla forest on 1200-1640 m. Semi-evergreen forest on 500-1400 m. The lower area covered by savanna forest dominated by Eucalyptus alba, Casuarina junghuhniana and semi-deciduous forest regeneration. The area is the best and biggest lowland forest on Timor Island (Lesmana et.al.2000)
Pressure/threats to key biodiversity
Burning forest, hunting and livestock grazing at forest area (MacKinnon et.al 1982, Lesmana et.al 2000)
15000 ha of this area is proposed as a Wildlife Sanctuary (MacKinnon et.al 1982). WWF proposed to merged Gunung Muntis with Timau as a National Park.