Claim: Nanih Waiyah Lake in Pushmataha County, Oklahoma is an artificial lake of 131 acres, with a shore length of three miles, and a surface elevation of 594 feet.
Evidence: Nanih Waiya Lake is a small recreational lake in Pushmataha County, Oklahoma. artificial lake 131 acres (0.53 km) 3 miles (4.8 km) 594 foot (181 m)