Asahan River

Asahan River
  • Aek Toba
  • Aek Asahan
  • Sei Asahan
  • Sungai Asahan
Spring of the Asahan River at Porsea, Toba Samosir (1929)
Location
CountryIndonesia
Physical characteristics
Source 
  locationLake Toba, Porsea, Toba Samosir, North Sumatra
  coordinates2.434866, 99.147690
  elevation950 m (3,120 ft)
Mouth 
  location
Strait of Malacca
  coordinates
3.03333°N 99.866667°E
  elevation
0 m
Length147 km (91 mi)
Basin size7,225.45 km2 (2,789.76 sq mi)
Discharge 
  locationNear mouth
  average(Period: 1971–2000)265.7 m3/s (9,380 cu ft/s)

The Asahan River (Indonesian: Sungai Asahan) is one of the principal rivers in North Sumatra, Indonesia, that begins in Porsea, Toba Regency near the southeast corner of Lake Toba.