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Rianila River
Map of Malagasy rivers.
Location
Country	Madagascar
Region	Atsinanana
City	Brickaville
Physical characteristics
Source
• location	Fahona Massif
• elevation	1,450 m (4,760 ft)
Mouth
• location	Andevoranto, Brickaville, Atsinanana
• coordinates	18°58′35″S 49°06′10″E / 18.97639°S 49.10278°E / -18.97639; 49.10278
• elevation	0 m (0 ft)
Length	134 km (83 mi)
Basin size	7,820 km (3,020 sq mi)
Discharge
• location	Near mouth
• average	(Period: 1971–2000)325.2 m/s (11,480 cu ft/s)
Basin features
River system	Rianila River
Tributaries
• left	Rongaronga
• right	Iaroka, Vohitra,

Rianila is a river in the Atsinanana region in eastern Madagascar. It flows down from the central highlands to flow into the Indian Ocean south of Brickaville at Andevoranto. Its largest tributary is the Rongaronga, which joins it near Brickaville as well as the Iaroka and Vohitra Rivers.

The river was previously called the Iharoka River by Western explorers (and the Jark River in a few sources).

References

• (in French) canaldespangalanes.over-blog.com - Descente de la Rianila

1. "Madagascar".
2. History of Madagascar, p. 18 (1838) (example of English source, identifying it as the river just south of Andevoranto)

• v
• t
• e

• Rivers of Atsinanana
• Rivers of Madagascar
• Africa river stubs
• Madagascar geography stubs