Aksaray Thracian about the killing of Proterius of Alexandria in 458) at the Council of Chalcedon in 451, Alexander at a council called by Patriarch Menas of Constantinople in 536, and Conon at the Trullan Council of 692. No longer a residential bishopric, Colonia in Cappadocia is today listed by the Catholic Church as a titular see. Colonia is also a titular metropolis in Turkey of the Ecumenical Patriarchate of Constantinople. The town was also prosperous during Ottoman times due to its proximity to Tuz Gölü (Lake Tuz), which was a primary source of salt for Anatolia. The region came under
Lake Tuz Natural Gas Storage salt formation covers an area of . It is long and around thick. It has a salt dome structure. To create the caverns in the salt formation, fresh water was brought by pipeline from Hirfanlı Dam at distance. Using the process of solution mining, water was injected through a borehole into the salt formation, and the saline water, which is formed after dissolution of salt in water, was pumped back to the surface leaving a void in the formation. The salt water was transported to far away Lake Tuz by pipeline. Gas pressure inside the storage is nearly . The