That happened in the Iron Bowl, Alabama versus Auburn, in 2010. Auburn won NCAA title for first time in dozens of years... 109 yards return!
https://www.youtube.com/watch?v=8GKmkD1pUG0
And I’m not trying to one up you, but nothing much ever happens in Alabama so we tend to remember such things!
That was perhaps the most unexpected and thrilling play in my college football memory because it came from a missed field goal attempt which are almost never returned. And under those circumstances ! Wowzer.