Nyong river Yong
Nyong River
The Nyong River in Cameroon
Location
Country	Cameroon
Regions	Littoral Region, East Region, South Region, Centre RegionCentre Region
Cities	Abong-Mbang, Mbalmayo
Physical characteristics
Source
• location	Near Abong-Mbang
• coordinates	3°52′00″N 13°28′00″E / 3.86667°N 13.46667°E / 3.86667; 13.46667
• elevation	690 m (2,260 ft)
Mouth	Bight of Biafra
• coordinates	3°15′39″N 9°54′16″E / 3.26083°N 9.90444°E / 3.26083; 9.90444
• elevation	0 m
Length	690 km (430 mi)
Basin size	27,800 km2 (10,734 sq mi) [1]
Discharge
• location	Déhané
• average	446 m3/s (15,800 cu ft/s)
• minimum	40 m3/s (1,400 cu ft/s)
• maximum	1,226 m3/s (43,300 cu ft/s)
Basin features
River system	Nyong River
Population	1,179,200
Tributaries
• left	Long Mafok, Soo, Soumou, Kama [1]
• right	Kom, Mfoumou, Afamba, Ato, Mefou, Akono, Liyeke, Kéllé [1]
Waterfalls	Trappenbeck Rapids

The Nyong (formerly German: Yong) is a river in Cameroon. The river flows approximately 690 kilometres (430 mi) to empty into the Gulf of Guinea.

The Nyong originates 40 km (25 mi) east of the town of Abong-Mbang, where the northern rain forest feeds it.^[2] The river's length is almost parallel to the lower reaches of the Sanaga River. Its mouth is in Petit Batanga, 60 km (40 mi) south-southwest of Edéa.^[3] In two places, Mbalmayo and Déhané, the river has huge rapids. The first 400 km (250 mi) of the river, between Abong-Mbang and Mbalmayo, are navigable for small boats from April to November.

The flow of the river as measured at Déhané in m³/s:^[1]

The town of Mbalmayo, which has a railhead, lies on the north bank of this river.^[2] The towns of Akonolinga and Abong-Mbang also lie on it.