Hiked to Devil's Mound (Чёртово Городище/Chertovo Gorodishche) on 30 May 2017.
Chertovo gorodishche has a structure similar to a mattress and creates a false impression that it is composed of flat plates. The origin of the stone cities refers to the distant past of the Ural Mountains. The rocks are made from granites, which have a volcanic origin and were formed about 300million years ago. During this time the Mountain was subjected to severe deterioration of the temperature difference, wind and water. As a result a bizarre natural formation was formed.