The complex Râpa Roșie (Red Gorge) Nature Reserve encompasses specific erosion and stream formations that lend the landscape an impressive appearance. It also boasts a unique flora with many rare and endemic plants. On the nearly vertical wall, strange columns and stepped pyramids, separated by ravines, form a micro-relief that geographers call "Badlands" after the famous model in South Dakota. The formation consists primarily of deposits of red clay with gray and red sandstone.