Sariyar Lake is formed by Sarıyar Dam. It is the dam on the Sakarya River is 23 kilometres north of the town of Sarıyar in the Nallıhan district of Ankara Province. It is 125 kilometres west of the city of Ankara, the central Anatolian capital of Turkey. It is located 60 kilometres upstream of Gökçekaya Dam on the Sakarya River, which runs into the Black Sea. It was completed in 1956. The total power output from the hydroelectric facility is 160 MW.
