Daecheong Lake (대청호, 大淸湖, big.clean.lake) is a manmade lake in the city of Daejeon, stretching to the counties of Cheongwon, and Okcheon in Chungcheongbuk-do. It has a total surface area of 72.8㎢, a circumference of 80km, 1.5 billion tonnes of water, and is the third largest lake in the country.
