About from the mouth, the river flows through the Moyowosi swamplands and passes through the Dodoma Belt, a geological area of Archaean and Proterozoic age Precambrian crystalline rocks.
About from the mouth, the river flows through the Moyowosi swamplands, an area of "extensive swamps and floodplains". It passes through the Dodoma Belt, a geological area of Archaean and Proterozoic age Precambrian crystalline rocks.