Lake Acıgöl
Acıgöl is a lake in Turkey's inner Aegean Region, in an endorheic basin at the junction between the provinces of Denizli, Afyonkarahisar, and Burdur. Its surface area varies greatly through the seasons, from in spring to in late summer. The lake has a maximum depth of, with the surface elevation above sea level. It is notable for its reserves of sodium sulfate, used extensively in industry, and it is the site of Turkey's largest commercial sodium sulfate production operation. The lake lies east of Denizli city. From west to east, the lake's surrounding districts and towns are Bozkurt, Çardak, Dazkırı and Başmakçı.
The lake is fed primarily by high-sulfate springs issuing from a fault line on its south side. The lake is estimated to contain of sodium sulfate on the surface and in the subsurface brine, with probable total reserves of and possible reserves of. The yearly production rate in the late 1990s was, all from private sector companies.
The ancient Greeks called the lake Anaua, and the ancient town near the lake was named Anaua. Historians think that the lake Ascania mentioned by Arrian is also the same lake.