Swan River originates from Joh-Marwari Village near
Daulatpur at Amb in
Una District. It flows through Jaswan Valley towards south, before joining
River Sutlej near
Anandpur Sahib in
Punjab. This river is the life belt of Jaswan Valley. Around 65 km of the total 85 km length of the Swan River lies in
Himachal Pradesh. It has 73 tributaries. Swan River has earned the name of 'river of sorrow' in Una District, due to frequent floods. Jhalera, Santoshgrah and
Una are located on the banks of this river.