They are included between the Monti Lattari, the Partenio mount, the Irpinian plateau and the Sele river valley.
The chain is included in the Monti Picentini Regional Park.
A central depression, joining the valleys of the Calore Irpino and Tusciano rivers, divided the range in two geologically different sectors: the western one, where rocks are predominantly dolomite, and the eastern one, mostly made up of limestone and has generally a less sharp landscape.
Karst topography is widely present, from which, in the valleys below, originates several springs.
Vegetation is generally low, somewhere mixed with chestnut woods.