The ecoregion covers an area of 29,700 square kilometers (11,500 sq mi), encompassing the montane forests of the Arakan Mountains.

[4] The ecoregion includes Nat Ma Taung (Mount Victoria) in southern Chin State, which rises to 3,109 metres (10,200 ft) above sea level.

Dominant canopy trees include Bauhinia variegata, Lagerstroemia speciosa, Derris robusta, and species of Ficus, Hibiscus, and Strobilanthes.

[1] Above 3000 meters elevation on Nat Ma Taung, shrub forests of Hypericum patulum and Rhododendron burmanicum occur, with herbaceous plants including species of Aconitum, Lactuca, Pedicularis, and Veronica.

[1] The ecoregion is home to several threatened and endangered mammals, including the hoolock gibbon (Hylobates hoolock), tiger (Panthera tigris), leopard (Panthera pardus), clouded leopard (Pardofelis nebulosa), sun bear (Ursus malayanus), Eld's deer or thamin (Cervus eldii), and gaur (Bos gaurus).