Drance

Drance
The Drance at Martigny
Native name
Location
CountrySwitzerland
CantonValais
SettlementsMartigny, Bovernier, Sembrancher
Physical characteristics
SourceConfluence of the Dranse d'Entremont and Dranse de Bagnes
  locationSembrancher, Valais
  coordinates46°04′41″N 7°9′34″E / 46.07806°N 7.15944°E / 46.07806; 7.15944
  elevation4,308.0 m (14,133.9 ft)
Mouth 
  location
Rhône at Martigny, Valais
  coordinates
46°07′31″N 7°3′57″E / 46.12528°N 7.06583°E / 46.12528; 7.06583
  elevation
454 m (1,490 ft)
Length14.5 km (9.0 mi)/43 km (27 mi) (Dranse de Bagnes)
Basin size676 km2 (261 sq mi)
Discharge 
  locationMartigny, Pont de Rossettan
  average53.5 m3/s (1,890 cu ft/s)
  minimum2.08 m3/s (73 cu ft/s) (NM7Q 1907–2017)
  maximum177 m3/s (6,300 cu ft/s)
Basin features
ProgressionRhôneMediterranean Sea

The Drance (French: La Drance/Dranse, French pronunciation: [dʁɑ̃s]) is a river in Valais, Switzerland with a length of 14.5 kilometers (9.0 mi) to the confluence with the Rhône, a maximum length of 43 kilometers (27 mi). It has a drainage basin of 676 square kilometers (261 sq mi). The river is formed from the confluence of the Dranse d'Entremont and the Dranse de Bagnes at the village of Sembrancher. Further upriver the Dranse d'Entremont splits into the Dranse d'Entremont and the Dranse de Ferret.