I answered my own question:
"The highlight of the Division II era was the 1989 NCAA Regional Championship, the first NCAA postseason for the Bears since the 1966 season. Northern Colorado finished the regular season with a 23-5 overall record (the most regular season wins ever for a NCC team at that time), a 14-4 North Central Conference mark and a No. 11 national ranking.
That earned the team the right to host Augustana, Alaska-Fairbanks and Wisconsin-Milwaukee in the two-day event. Behind 26 points from All-American Mike Higgins, Northern Colorado pulled away from a halftime tie to top Alaska-Fairbanks 92-70 for the opportunity to meet Wisconsin-Milwaukee (who had defeated Augustana 99-95) for the chance to go to the NCAA Elite 8. The Bears led UW-Milwaukee by three points with 20 seconds remaining, but a 3-pointer sent the contest into overtime and a jumper with 10 seconds left in the extra period sealed the fate for Northern Colorado, which lost 89-88 in front of a still-record crowd of 4,674."
http://uncbears.com/sports/m-baskbl/spec-rel/102103aaa.html