Geologically, Uplistsikhe is situated on an impressive rocky plateau carved out of a tuff stone formation. Tuff is a type of volcanic rock formed from consolidated volcanic ash and other pyroclastic materials. The plateau consists of various rock-cut structures interconnected by narrow streets, tunnels, and staircases, forming a labyrinth-like complex. These structures include dwellings, public buildings, a theater, a palace, and even a Christian basilica, indicating the influence of different civilizations that inhabited Uplistsikhe over the centuries.