Lake Mamacocha (possibly from Quechua mama mother / madam / qucha lake, mama qucha ocean,Teofilo Laime Acopa, Diccionario Bilingüe, Iskay simipi yuyay k'ancha, Quechua – Castellano, Castellano – Quechua Mama Qucha) or Lake Yanacocha is a lake in Peru located in Encañada District, Cajamarca Province, Cajamarca Region.escale.minedu.gob.pe - UGEL map of the Cajamarca Province (Cajamarca Region) showing "Lago Mamacocha (yanacocha)"
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