Southern Ewaso Ng'iro

Southern Ewaso Ng'iro
Southern Ewaso Ng’iro from Kalema (Kenya) to its mouth into Lake Natron (Tanzania)
Mau Forest (green) with Ewaso Ng'iro running south to Lake Natron at the foot of the map.
Location
CountryKenya
Physical characteristics
Mouth 
  coordinates
2°08′13″S 36°03′04″E / 2.13691°S 36.05101°E / -2.13691; 36.05101
Basin size7,600 square kilometres (2,900 sq mi)

The Southern Ewaso Ng'iro (Brown River) is a river in the Great Rift Valley in Kenya. It plays an important role in the ecology of Lake Natron, the main regular breeding site for near-threatened lesser flamingos. Changes to land use in the river's headwaters or in the marshes before the river enters the lake could have a serious impact on this species.