Lake Manawa State Park is one of the most popular outdoor recreation facilities in the Omaha/Council Bluffs metropolitan area. The park's 1,529 acres encompass a beautiful 772-acre lake. Lake Manawa was formed during a flood in 1881 when a portion of the river channel was cut off by the meandering of the great Missouri River. Over the years, the resulting "oxbow" lake, became a major outdoor recreation center for thousands of visitors. "Manawa" is a Native American term meaning "peace and comfort."