Querquecocha  Querquecocha (possibly from Quechua "khirki" armadillo / very rough, "qucha" lake, "armadillo lake" or "rough lake") is a lake in Peru located in the Cusco Region, Chumbivilcas Province, Velille District. It is situated at a height of about , about 1.87 km long and 0.55 km at its widest point. Querquecocha lies south-east of Velille and north of the lake Orccococha.