Question: What stadium did the 1997 Montana Grizzlies football team play at that was opened in 1986?
Sentence (from "Washington–Grizzly Stadium"): Opened in 1986, it is home to the Montana Grizzlies college football team, a dominant program of the Big Sky Conference and consistently a top team in Division I FCS, formerly known as "Division I-AA".
Relevant evidence: Yes