Central Caucasus is the operation of all of the Caucasus system, the highest part of the entire mountain system and the one with the most hard access. Closed off to the west by Mt. Elbrus and to the east by Mt. Kazbek, the divide is quite articulate and complex and branches off to the north and south into a series of buttresses. Here lie the most famous rock faces in the Caucasus system scattered over the regions of Mt. Elbrus ("Prielbrusie," or area around Mt. Elbrus), Mt. Bezengi, Svanetia and, in the eastern most part of the central Caucasus, of Digoria, Karaugorn and Tsey.