Mataqucha (Quechua mata united, qucha lake, Diccionario Quechua - Español - Quechua, Academía Mayor de la Lengua Quechua, Gobierno Regional Cusco, Cusco 2005 (Quechua-Spanish dictionary) Ref Laime "united lake", Hispanicized spellings Matacocha, Matacochas) is a mountain in the Andes of Peru, about 5000 meters high, at a small lake of the same name.