The lake lies at 42°42′N 22°20′E,
on plateau called Vlasina, on the altitude of 1211 m. Its
area is shared among municipalitiesofSurdulica and CrnaTrava. The
plateau is surrounded by mountains of Čemernik, Vardenik and Gramada. The
lake stretches in the North-South direction, with the length of about
9.5 km and the maximal width of approximately 3.5 km. Its average
depth is 10.5 m, while the maximum depth is 34 m, near the dam. The
central part of the lake is wide, 10–15 m deep. Its eastern
