Jauja is a Peruvian province. It is one of the nine provinces of the Junín Region. To the north it borders with the provinces of Yauli, Tarma and Chanchamayo. To the east with the province of Satipo,

The Mantaro River is a long river running through the central region of Peru. Its Quechua name means "great river". The word "Mantaro" may be a word originally from the Asháninka language, who live do