Yauyos Province
Wankarqucha (Quechua "wankar" a kind of drum, "qucha" lake, "drum lake", Hispanicized spelling "Huancarcocha") is a mountain in the Cordillera Central in the Andes of Peru and the name of the lake at its feet. It is situated in the Lima Region, Yauyos Province, in the districts of Colonia and Huantan.