It is made of Beas River. In 1960, a dam was built on the Beas river and this dam resulted in a huge Maharana Pratap Sagar Lake (once known as Pong Lake). This huge mass of water varies from 180 sq. km. to 400 sq. km. This lake was declared sanctuary in 1983. Maharana Pratap Sagar Lake has emerged as favourite place of many migratory birds. About 16 to 20 thousand migratory birds, belonging to 54 species, visit the lake every year. . The Dam was completed in 1976. Its reservoir has an area of about 45,000 hectares at maximum possible flooding - the level varies with every season and averages around 30,000 hectares. Over 200 villages with a population of over 85,000 people lie along the wetland.
Location : located in district Kangra. 170 km from Chandigarh, 110 km from Amritsar, 55 km from the district headquarters at Dharamshala. The closest railway stations are at Mukerian - 30 km, and Pathankot - 32 km.