Ramena River

Ramena River
River
Tsaratanana Massif river system
Country	Madagascar
Region	Diana
Source	at the Maromokotra peak
- location	Tsaratanana Massif, Diana
- elevation	2,500 m (8,202 ft)
Mouth	Sambirano River
- location	Diana
- elevation	27 m (89 ft)
- coordinates	13°45′53″S 42°28′00″E / 13.76472°S 42.46667°E / -13.76472; 42.46667Coordinates: 13°45′53″S 42°28′00″E / 13.76472°S 42.46667°E / -13.76472; 42.46667
Length	80 km (50 mi)
Basin	1,080 km2 (417 sq mi)

The Ramena River is a river of northwestern Madagascar in the region of Diana. It has its sources at the Maromokotra and is the main affluent of the Sambirano River.