Its highest peak, Petrov crast, stands at 1205.6 meters.

[1] Close to the town of Dragoman, it is also near the Kalotina–Dimitrovgrad border checkpoint, linking Bulgaria with Serbia via the international road E80 and a railway line.

[1] In 2014, a study identified 344 species of medicinal plants, which belong to 237 genera and 83 families.

[2] An altar dating back to the early decades of the 3rd century AD was discovered in this sanctuary.

Presently, it is on display at the Archaeological Institute and Museum in Sofia.