where the Nyabihongo and Mugatama rivers, on either side of the Rugazi colline, converge to the west of Muramba in Karuzi Province.

[1][2] It flows in a winding course north of northeast through Muyinga Province to the Kavuruga Dam, then a short distance to its mouth on the Ruvubu River.

[2] As of 2014 the lower river flowed through a 40 hectares (99 acres) undeveloped marsh.

[10] The power station receives water from the Kavuruga dam, which was built with the assistance of the Federal Republic of Germany.

[10] In 2009 REGIDESO Burundi, the water and electricity authority, announced bids to rehabilitate five hydroelectric plants and to improve the network in Bujumbura.