 The teams played only five times between Idaho's departure for Division I-A in 1996 and its return to FCS (formerly Division I-AA) in advance of the 2018 season, with the I-AA Montana Grizzlies winning the last four, most recently in 2003.Since the departure of Idaho, Boise State, and Nevada from the Big Sky to Division I-A in the 1990s, the Montana Grizzlies have been the dominant I-AA/FCS football program in the West, though pushed strongly in the last part of the 2010s by Eastern Washington.The winner of the Idaho-Montana game claims the Little Brown Stein trophy.