Phaq'u Quta (Aymara phaq'u, paqu, p'aqu light brown, reddish, blond, dark chestnut, quta lake, chestnut coloured lake) is a lake in Bolivia located in the La Paz Department, Pedro Domingo Murillo Province, El Alto Municipality. It is situated at a height of about 4,667 metres (15,312 ft) south of the mountain Chacaltaya, south-east of Milluni Lake and south-west of Qillwani (Khelluani).