 The Mammoths are the first professional indoor or arena football team to be located in Maine.After various speculation beforehand, the Mammoths were officially announced as a National Arena League (NAL) expansion team on December 5, 2017.The team was created by National Sports Ventures, a company led by NAL executive Rob Storm and Atlanta businessman Richard Maslia and also includes Jeff Bouchy, owner of the NAL's Jacksonville Sharks and the league's expansion chairman.