Mangoro River

At about 1,100 meters, the Mangoro begins northeast of the village of Anjozorobe in the Analamanga region. Mangoro is also one of the longest rivers in Madagascar. The Onive River (which joins on the right bank 200 kilometers from the river source) and the Nosivolo River are its main tributaries. Its mouth is near the village of Ambodiharina, in the Indian Ocean. Mangoro is one of the longest rivers in Madagascar.

The Mangoro maintains a good flow year-round because to its numerous tributaries, making it a great river for rafting. Crocodiles can be found in small numbers in the river's calmer areas, but their numbers are declining.

Sherritt International Corporation proposed to use the Mangoro River as a water source for a slurry pipeline conveying ore for the Ambatovy project mines as of 2012, causing environmental concerns.

Length: 300 km (190 mi)