The Landwasser is a river in

canton of Graubünden The Grisons (; ) or Graubünden (),Names include: * ; * Romansh: ** ** ** ** ** **; * ; * ; * . See also other names. more formally the Canton of the Grisons or the Canton of Graubünden, is one of the twenty-six cantons of Switzerland. I ...

, Switzerland. Its origin was

Lake Davos Lake Davos () is a small natural lake at Davos, Switzerland. Its surface area is 0.59 km² and the maximum depth is 54 m. Fed by sources of the Rhine, Flüelabach and Totalpbach, among other mountain creeks, the lake is used as a hydropower rese ...

before this was turned into a reservoir for a power station. Nowadays it is prolonged by the creek Flüelabach at its source and changes its name near

Davos Dorf Davos (, ; or ; ; Old ) is an Alpine resort town and municipality in the Prättigau/Davos Region in the canton of Graubünden, Switzerland. It has a permanent population of (). Davos is located on the river Landwasser, in the Rhaetian Alp ...

. The town of

Davos Davos (, ; or ; ; Old ) is an Alpine resort town and municipality in the Prättigau/Davos Region in the canton of Graubünden, Switzerland. It has a permanent population of (). Davos is located on the river Landwasser, in the Rhaetian ...

is the largest, uppermost, and, except for the last bit, the only larger settlement on the river. Landwasser empties into the Albula below the village of

Filisur Filisur is an Alps, Alpine village and former municipalities of Switzerland, municipality in the Albula Region in the Cantons of Switzerland, canton of Graubünden in Switzerland. The village sits on a hillside with a view to the west where the t ...