To the southwest the valley of the river Yablanitsa, a right tributary of the Erma, forms the boundary with the small mountain ranges Ezdimirska Planina and Strazha of the Kraishte region, while a 878 m saddle links it to Lyubash.

It main ridge rises to 1,000–1,100 m. It highest summit is Kitka (1,181 m), situated 1.4 km northwest of the village of Zavala.

It is made up mainly of Upper Cretaceous sandstones, marl, limestone, tuff, tuffite and thick andesite beds.

Along its southwestern slopes between Breznik and Filipovtsi passes a 23.8 km stretch of the second class II-63 road Pernik–Breznik–Tran–the border with Serbia.

[2] Along its northwestern slopes between Filipovtsi and Gralska Padina is a 13.7 km section of the third class III-813 road Buchin Prohod–Godech–Dragoman–Tran.