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)[1]
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)[1]
Discharge 
 • locationMartigny, Pont de Rossettan
 • average53.5 m3/s (1,890 cu ft/s)[3]
 • minimum2.08 m3/s (73 cu ft/s) (NM7Q 1907–2017)[2]
 • maximum177 m3/s (6,300 cu ft/s)[3]
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.

  1. ^ a b Federal Office for the Environment FOEN, Federal Office of the Environment (FOEN) (21 October 2021). "Topographical catchment areas of Swiss waterbodies: Area outlets, Sub-catchment area number 116755". Retrieved 21 October 2021.
  2. ^ Federal Office of the Environment (FOEN) (13 June 2019). "FOEN- Hydrological Data and Forecasts, Low Flow Statistics". Retrieved 13 June 2019.
  3. ^ a b Federal Office of the Environment (FOEN) (13 June 2019). "FOEN- Hydrological Data and Forecasts, Flood Statistics". Retrieved 13 June 2019.