Bemarivo River

Bemarivo River
Bemarivo river from Route Nationale 5a
Map of Malagasy rivers (Bemarivo flows from the central-northern part to the eastern coast).
Location
CountryMadagascar
RegionSava
CitiesNosiarina, Ambinanybe, Antafiamazava
Physical characteristics
Source 
  locationMount Biempoko
  elevation2,219 m (7,280 ft)
Mouth 
  location
Indian Ocean
  coordinates
14°08′45″S 50°09′19″E / 14.14583°S 50.15528°E / -14.14583; 50.15528
Length140 km (87 mi)
Basin size4,833.6 km2 (1,866.3 sq mi) to 5,400 km2 (2,100 sq mi)
Discharge 
  locationNear mouth
  average(Period: 1971–2000)176.3 m3/s (6,230 cu ft/s)
Basin features
River systemBemarivo River
Tributaries 
  rightAndroranga, Marerano, Anjialava

The Bemarivo River (/be.mari.v/), literally the big shallow, is located in northern Madagascar. It drains to the north-eastern coast, into the Indian Ocean. It drains the eastern part of the Tsaratanana Massif and the northern half of the Marojejy Massif.

It is crossed by the RN 5a near Nosiarina. Its mouth is situated 17 km north of Sambava.

It serves as the northern edge of the territory known as Betsimisaraka. Confusingly, a tributary of the Sofia River is also called the Bemarivo River (Sofia).