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Oltu (; ; ) is a municipality and district of Erzurum Province, Turkey. Its area is , and its population is 30,075 (2022). The mayor is Adem Çelebi, from the AKP.

History

An inscription found in Oltu's castle has been dated to the 7th century A.D.(see below), but the settlement is known to have been established much earlier. The city-fortress

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