They finished the regular season at with a record in the Big Sky Conference , fourth in the standings . In the conference tournament at Missoula , Montana , the fourth-seeded Broncos lost by four points to fifth seed Idaho State in the quarterfinals . Boise State received a bid to the National Invitation Tournament ( NIT ) and hosted a first round game , but lost to Southern Illinois by a point
conference tournament
1991 Big Sky Conference Men's Basketball Tournament
1990–91 Boise State Broncos men's basketball team