Along the second fork, to the left of Momina Salza Hut, along a narrow forest path running parallel to Rachene River, tourist will enter a canyon, part of an old Roman road which used to connect Ulpia Escus and Serdika. The path passes through a pine forest where, nearing the ridge, in addition to the amazing flora, one can see remains of Roman houses and of the castle wall.
Kaleto Tectonic Ridge covers an area of 57.4 ha and is declared a protected territory by virtue of Order №708/04.04.1961 of the Forest Authority.
The unique natural phenomenon represents a region approximately 750 meters long, 30-40 m wide, with some 60 m flop. It is surrounded on all sides by vertical rocks and can be accessed via a romantic path running between them. The amazing diversity of geometric rock formations is in complete contrast to the surrounding area.