UNCASVILLE, Conn: Mohegan, world-renowned entertainment and gaming brand formerly known as Mohegan Gaming & Entertainment, is excited to announce that the all-new 5,000-seat OLG Stage at Fallsview Casino in Niagara Falls, which recently celebrated its Grand Opening with a sell-out Billy Joel performance in February, has been nominated for Casino of the Year - Arena by the Academy of Country Music Awards (ACM).