It encompasses 63,028 hectares (630.28 km2) of mountainous terrain, with numerous lakes, dense deciduous and coniferous forests and alpine landscapes.

[3] The wide range of elevations and rugged topography of the mountains has created favorable conditions for a diverse vegetation and biodiversity.

Large mammals such as wildcats, chamoises, roe deers, grey wolves, as well as rare or endangered species like lynxes[4] and brown bears can be found within the forests of the park.

[7] The mixed oak forest zone is mainly covered with silver fir, norway spruce and european hornbeam, between 1,200 and 1,540 metres.

The breeding of fir forests zone, lying at an altitude of 1850–1930 metres, is characterized by endemic species such as the Balkan pine.