Ancascocha Dam - Credit: Wikimedia Commons
Lake Ancascocha (possibly from Quechua anqas blue, qucha lake) is a lake in Peru located in the Ayacucho Region, Lucanas Province, Chaviña District, and in the Parinacochas Province, Coracora District. It is situated at a height of approximately , about 2.24 km long and 1.48 km at its widest point. Read more on Wikipedia
Source: en.wikipedia.org