• Mount Semipeschernaya
Altai region

The mountain is a limestone cliff overhanging the river stream for 150 meters. Various-format and different-sized grottoes and caves of the mountain have names. The most notable are two of the seven - Gloomy and String.

The string is a tunnel-type end-to-end cave with a steep slope. The lower exit from Struna is located directly at the water edge, while the upper one is a well-shaped failure and is 40 meters higher. The total length of the cave is 75 meters.

Gloomy stretched for 76 meters with an amplitude of 5 meters. The entrance is quite spacious and faces south; from it to the north the gallery narrows, ending with a ledge into a flat and cupped grotto. A remarkable cave in terms of archeology.