Per ESPN:

The league produced six 1,500-yard rushers -- no other conference had more than three (no other Power 5 league had more than two). According to research from the Big Ten office, until 2014 the league never had more than three 1,500-yard rushers in the same season. Although a 12-game regular season, a championship game and the College Football Playoff provide more opportunities, Ohio State's Ezekiel Elliott was the only back who needed the extra contests to reach -- and ultimately far eclipse -- 1,500 yards. 

According to ESPN Stats and Info, no FBS conference has had even five 1,500-yard rushers since at least 1996. 

The Big Ten produced the nation's top three rushers in Gordon, Coleman and Elliott.