The Upamayo Dam (possibly from

Quechua Quechua may refer to: *Quechua people, several Indigenous ethnic groups in South America, especially in Peru *Quechuan languages, an Indigenous South American language family spoken primarily in the Andes, derived from a common ancestral language ...

''upa'' calm, silent; mute, ''mayu'' river) is a dam at

Lake Junin Lake Junin (; Spanish language, Spanish ''Lago Junín'', named after the nearby town of Junín, Peru, Junin) or Chinchaycocha (possibly from Quechua language, Quechua ''chincha, chinchay'' north, northern, ''chinchay'' ocelot, ''qucha'' lake, lag ...

, the largest lake entirely in

Peru Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pac ...

. It is located on the border of the

Junín Region Junín may refer to: Places Argentina * Junín Partido ** Junín, Buenos Aires *** Junín Airport * Junín Department, Mendoza ** Junín, Mendoza * Junín Department, San Luis * Junín de los Andes, Neuquén Colombia * Junín, Cundinamarca * ...

Junín Province Junín may refer to: Places Argentina * Junín Partido **Junín, Buenos Aires ***Junín Airport *Junín Department, Mendoza ** Junín, Mendoza * Junín Department, San Luis * Junín de los Andes, Neuquén Colombia * Junín, Cundinamarca * Jun ...

, Ondores District, and the

Pasco Region Pasco () is a department and region in central Peru Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in ...

, Pasco Province, Vicco District. The dam was erected in 1936. It is high and long. It is operated by Centromín Perú. The

reservoir A reservoir (; ) is an enlarged lake behind a dam, usually built to water storage, store fresh water, often doubling for hydroelectric power generation. Reservoirs are created by controlling a watercourse that drains an existing body of wa ...

has a capacity of .

References

{{reflist, refs= {{Ref Laime escale.minedu.gob.pe - UGEL map of the Junín Province (Junín Region) Obras hidraulicos en la cuenca de Mantaro - fuente : fuente: Electroperu - Inventario proyectos de afianzamiento hidrico Cuenca del Rio Mantaro, 2005 Recursos Hídricos del Perú en Cifras, Boletín Técnico de Recursos Hídricos 2010, Autoridad Nacional del Agua, Ministerio de Agricultura, Perú Dams in Peru Buildings and structures in the Department of Junín Buildings and structures in the Department of Pasco Dams completed in 1936 Gravity dams