Grasslands, shrubs and barren rocks dominate the higher elevations. The main rivers draining the Athamanika are the Arachthos in the west, and the Achelous in the east.
The upper areas of the Athamanika are marked by grasslands, small shrubs, and exposed rocks. The main waterways emptying the region are the Arachthos River to the west and the Achelous River to the east.