The study of the geological conditions of the territory is the key to the strategy of preserving the underground caves of the Holy Dormition Pskovo-Pechersky (Pskov-Caves) Monastery

This paper examines the cave system of the Holy Dormition Pskov-Pechersk Monastery, formed in the stratigraphically aged thickness of fine-grained sandstones of the Schwentoi horizon (D3šv) of the Frankish tier. Sandstones are characterized by a specific composition and structure, which led to the presence of unusual properties of these rocks, thanks to which the monastery arose, which has enjoyed deep popular veneration for more than 600 years. The destruction of caves is currently caused by both natural and man-made factors, and the development of a strategy for the preservation of caves is impossible without studying the geological causes of their formation.