qillwaqucha (quechua "qillwa, qiwlla, qiwiña" gull, "qucha" lake, "gull lake", hispanicized spelling "quelluacocha") is a lake in peru located in the cajamarca region, cajamarca province, namora district. it is situated at a height of about . the village at its eastern shore is also named qillwaqucha "(quelluacocha)".