| Marimbona | |
|---|---|
 | |
| Location | |
| Country | Madagascar |
| Region | Analanjirofo |
| City | Soanierana Ivongo |
| Physical characteristics | |
| Source | |
| • location | Andilamena, Alaotra Mangoro |
| Mouth | Indian Ocean |
• location | Soanierana Ivongo, Analanjirofo |
• coordinates | 16°54′S 49°35′E / 16.900°S 49.583°E |
• elevation | 0 m (0 ft) |
| Basin size | 1,495 km2 (577 sq mi)[1] |
| Discharge | |
| • location | RN 5 |
| Basin features | |
| Tributaries | |
| • right | Andasibe river, Ambohangy, Fotsialana, Sahatiana, Sahasarotra |
The Marimbona river is located in northern Madagascar and crosses the Route Nationale 5 near Soanierana Ivongo. It has its springs near Andilamena[2] (Alaotra Mangoro), forms the southern border of the Ambatovaky Reserve, passes Andapafito and flows into the Indian Ocean north of Soanierana Ivongo.