Pumacocha (possibly from Quechua puma cougar, puma, qucha lake,) is a lake in Peru located in the JunÃÂn Region, Yauli Province, Yauli District. It is situated at a height of approximately , about 5.144 km long and 0.95 km at its widest point. Pumacocha lies northwest of a lake named Huallacocha (possibly from in Quechua Wallaqucha) and southwest of the town of Yauli.
The Pumacocha dam was completed in 1942. It is long and high. It is operated by CentromÃÂn Perú. The reservoir has a volume of and a capacity of .