Bronco Stadium 's bright blue playing field was the first non-green field in college football . The flag-waving leprechaun mascot and the Irish Guard precision marchers rile up the crowd , and the team still salutes the fans after every game ( win or lose ) . UPenn 's Franklin Field is the oldest college stadium still in use , dating back to 1895 . Comment:
Bronco Stadium 's bright blue playing field was the first non-green field in college football . UPenn 's Franklin Field is the oldest college stadium still in use , dating back to 1895 . Comment: