Kushtau – is a shihan hill located in Ishimbaysky District along with Sterlitamak city's border, Russia. The mountain is a reef of an ancient tropical sea of the Lower Permian period formed over 230 million years ago.
Wikipedia https://en.wikipedia.org/wiki/Kushtau
Address Russia
Coordinates 53°41'36.218" N 56°5'9.645" E