Time to end the fight against Prairie Flower Casino By Ron Cumberledge, Des Moines Register May 21, 2019 at 1:42 pm In Carter Lake, Ia., a town of less than 4,000 citizens on the Nebraska side of the Missouri River, the Ponca Tribe of Nebraska has been working to develop gaming and entertainment options on its sovereign land within our city limits. In November 2018, the Prairie Flower Casino opened to large crowds and excited locals. The opening was a long time coming. For more than a decade, the State of Iowa, State of Nebraska and the City of Council Bluffs have been fighting to prevent the Ponca Tribe and Carter Lake from realizing the benefits of economic development and entertainment. In March, a District Court judge directed The National Indian Gaming Commission (NIGC) to consider a final set of factors.