The Mananantanana is a river in

Haute Matsiatra Haute Matsiatra (in Malagasy: Matsiatra Ambony) is a region in Madagascar. It borders Amoron'i Mania region in north, Vatovavy-Fitovinany in east, Ihorombe in south and Atsimo-Andrefana in west. The capital of the region is Fianarantsoa, and the ...

region, is located in eastern

Madagascar Madagascar, officially the Republic of Madagascar, is an island country that includes the island of Madagascar and numerous smaller peripheral islands. Lying off the southeastern coast of Africa, it is the world's List of islands by area, f ...

. It flows into the

Mangoky River The Mangoky River is a 564-kilometer-long (350 mi) river in Madagascar in the regions of Atsimo-Andrefana and Anosy. It is formed by the Mananantanana and the Matsiatra. Another important affluent is the Zomandao River. It rises in the ...

.Fleuves & Rivières de Madagascar
/ref> It has its springs in the

Andringitra Massif The Andringitra Massif ("desert of rocks") is a granite massif located within Andringitra National Park in Madagascar. The range is approximately long. In its central area, the range is almost wide, though it is much narrower on either end. Pic ...

. Together with the

Matsiatra The Matsiatra is a river in Haute Matsiatra region, is located in central and western Madagascar. It flows into the Mangoky River. Together with the Mananantanana, it forms the Mangoky River The Mangoky River is a 564-kilometer-long (350 ...

it forms the

References

Rivers of Madagascar Rivers of Haute Matsiatra {{Madagascar-river-stub