The north of the Nyengwe River defines the southern boundary of the Vyanda Forest Nature Reserve.

[1] The upper section of the river flows through the Mumirwa natural region.

It passes under the RN3 coastal highway at Rimbo, and flows through an oil palm plantation to its mouth on Lake Tanganyika.

[3] A hydrological station was installed on the Nyengwe at Rimbo in October 1979.

[4] In May 2019 the Nyengwe River overflowed in the Rimbo colline and destroyed 28 houses.