The Nam Ngum Reservoir is a large artificial lake located in Laos, created by the damming of the Nam Ngum River. It covers an area of approximately 100 square kilometers and serves as a crucial source of hydroelectric power for the region. The reservoir is also important for irrigation and fishing, supporting local communities. Constructed in the 1970s, the Nam Ngum Dam is one of the first major hydroelectric projects in Laos. The reservoir's scenic beauty, surrounded by mountains and forests, attracts tourists, making it a popular destination for recreational activities such as boating and fishing.