Lake Hazar is a rift lake in the Taurus Mountains, 22 km southeast of Elazığ, notable as the source of the Tigris. Formerly known as Lake Geoljuk, the lake was used as an execution site during the Armenian genocide.

Sunken city

Scientists found 4,000-year-old archaeological traces of a city, estimated to have been submerged since 1830, below the lake. Turkey wanted to register this historic 'Sunken City' in eastern Anatolia as a UNESCO World Heritage Site. Ebubakar Irmak, mayor of Sivrice, dove into the lake in 2017 and found the remains of churches, walls of a castle, pots, pottery and glazed plates of the citadel with traces of the Seljuk, Byzantine and Ottoman eras. In 2019, amphora tombs were found in the sunken city.