Karahallı is a town and district of Uşak Province in the inner Aegean region of Turkey. Karahallı district area neighbors those of two other districts of the same province to the north, namely Ulubey and Sivaslı, and to the south those of two districts depending Denizli Province which are Çivril and Bekilli.Karahallı center is at a distance of 62km from the province center of Uşak lying to its north. The district has fourteen depending villages, namely; Alfaklar, Buğdaylı, Beki, Çoğuplu, Çokaklı, Delihıdırlı, Dumanlı, Duraklı, Külköy, Kaykıllı, Kırkyaren, Kavaklı, Karayakuplu and Paşalar.The district area is crossed by Banaz Stream and is divided roughly equally between agricultural lands and woodland, mostly oaks.The name of the town makes reference to its founder, the 14th century Turkmen bey Kara Halil. The township was made into a district in 1953, simultaneous to the separation of Uşak Province from Kütahya Province, and Uşak's becoming a province seat.There is a recently built dam and its reservoir, which is arranged into a recreational area that stands out notably by the presence of an ancient bridge, possibly associated with the Lydians and the Persians, and the Royal Road, although research specific to the bridge is yet to be made. It is built over Banaz Stream (Banaz Çayı) which later joins Büyük Menderes River and the locality is called Clandras or Klandras.
