Kingsley Dam is located on the east side of Lake McConaughy and is the largest earthen dam in the world. It was built as part of the New Deal project. The dam is 162 feet (49 m) tall, 3.1 miles (5.0 km) long, and 1,100 wide at its base. On the east side of the dam is Lake Ogallala and on the south side is the Kingsley Hydroelectricity Plant. The Nebraska Game and Parks Commission and Central Nebraska Public Power and Irrigation District are also located in this area. Kingsley Dam, the Kingsley Hydroelectricity Plant, and the Morning Glory ? a large structure near the dam used to release water from the lake ? are main visual icons of the Lake McConaughy.