Keban Baraji

Completed in 1975 the Keban Baraji (675sq.km/260sq.miles; 30 billion cu.m/39 billion cu.yd) is one of the biggest reservoirs in the world. The most northerly of a whole series of dams built on the Euphrates as part of the GAP project, the Baraji collects water from two of the river's great arms, the Murat Nehri and the Karasu. The dam itself is 207m/680ft high and 1,100m/1,200yds long at the rim.

The Keban Baraji's chief function is to produce electricity (1,249 megawatts). Numerous villages in the Euphrates Valley had to be relocated to enable the dam to be built.