It flows in a generally west-southwest direction, turning west and then northwest at the Ndurumu Hydroelectric Station.

[1] The watershed of the Ndurumu River above the Marangara Hydroelectric Power Station is rugged, wth slopes between 5% and 55%.

More than 53.34% of the population of the watershed cultivate farms of less than 0.5 hectares (1.2 acres) and earn less than 100 dollars per year.

[2] In 2021 Enabel's Association for the Promotion of Education and Training Abroad (APEFE) launched a proposal for collaboration with the Programme d’Appui Institutionnel et Opérationnel au Secteur Agricole (PAIOSA) to rehabilitate the Muhembuzi marsh and the Ndurumu marsh in Bugesera.

Farmers upstream of the dam along the Ndurumu River had cut down almost all the trees and planted crops such as cassava and banana.