Cheonjangho Lake is situated on the ridge of Chilgapsan Mountain about 11 kilometers away from the Chilgapsan Recreational Forest. This is reservoir of 1,200 hectares and is used to irrigate nearby farm land. Construction began in 1972 and took seven years to complete. The lake boasts clean water and an outstanding surrounding landscape. When it comes under fog or clouds, it creates a scenic view against the Chilgapsan Mountain landscape. In early spring, smelts are caught in abundance, drawing a growing number of tourists and anglers.