Rawal Lake or Dam is an artificial lake in Pakistan. It provides water to Rawalpindi and Islamabad towns and near cities. The Korang lake, covering an area of 8.8 km². It was formed by the Korang River along with some other small streams coming from Margalla Hills. Korang River is the Rawal Dam outlet. Rawal Lake based in National Park of the Village of Malpur, Bani Gala and Margalla Hills.