Urqumayu, Mountain river in Province of Bolognesi, Peru

The Urqumayu is a mountain river that flows through steep, mountainous terrain in the Province of Bolognesi. It forms part of a larger network of waterways that shape the region and experience varying water levels throughout the seasons.

The name comes from the Quechua language, combining 'urqu' for mountain and 'mayu' for river. This reflects how geographical features of the area are embedded in local place names and language.

The river is also called Orgomayo, from Quechua urqu (mountain) and mayu (river). Its Spanish name Vizcarra honours Colonel Pedro C. Vizcarra, a former prefect of Huánuco. Near Huallanca, the Vizcarra hydroelectric plant stands on the left bank.

The river runs through a canyon-like valley with narrow banks hemmed in by high mountains, so access is mostly along the roads linking Huallanca, Ripán and La Unión. It joins the Marañón near the Tingo Chico bridge, close to Chuquis, at the northern end of Dos de Mayo province.

The river is also called Orgomayo, from Quechua urqu (mountain) and mayu (river). Its Spanish name Vizcarra honors Colonel Pedro C. Vizcarra, a prefect of Huánuco. Near Huallanca, the Vizcarra hydroelectric plant stands on the left bank.