Epirus, like the region as a whole, is rugged and mountainous.
It is largely made up of mountainous ridges, part of the Dinaric Alps. The region’s highest spot is on Mount Smolikas, at an altitude of 2.637 metres above sea level. In the east, the Pindus Mountains that form the spine of mainland Greece separate Epirus from Macedonia and Thessaly. Most of Epirus lies on the windward side of the Pindus. The winds from the Ionian Sea offer the region more rainfall than any other part of Greece.
The Vikos-Aoos and Pindus National Parks are situated in the Ioannina Prefecture of the region. Both areas have imposing landscapes of dazzling beauty as well as a wide range of fauna and flora. The climate of Epirus is mainly alpine. The vegetation is made up mainly of coniferous species. The animal life is especially rich in this area and includes, among other species, bears, wolves, foxes, deer and lynxes.
Epirus is divided into four regional units (formerly prefectures, nomoi), which are further subdivided into municipalities . The regional units are: Thesprotia, Ioannina, Arta and Preveza.