|| The given natural boundary is a unique
place from speleological and karst points of view, as here a variety
of karst, erosion and cave forms, built with the help of recent
karst being laid over older layers. There are a lot of calcium formations
in the natural boundary: deep karst relicts, more than 30 caves
different in size and depth. The sum length of major passages is
8.200 meters and depth - 126 meters. Passages in some caves are
quite dangerous because of ice and underground rivers.
Address: Sergushino Village, Nugush Settlement, Meleuzovsky Region, Bashkortostan.