Luru Mayu Lake (Quechua luru pip, mayu river, "pip river", Hispanicized spelling Loromayu) is a lake in Bolivia located in the PotosÃÂ Department, Sud LÃÂpez Province, San Pablo de LÃÂpez Municipality. At an elevation of 4,666 m, its surface area is 12 km<sup>2</sup>. It lies in the Eduardo Avaroa Andean Fauna National Reserve, northwest of a mountain called Luru Mayu. The lake is named after a river which originates in the mountains south and southeast of the lake.