GEVO 503 leads two othe GEVO's with a fourth on the rear in DPU on the Cedar Rapids/Iowa City turn as it enters Tiffin, Iowa.
Iowa Interstate 500 leading two GP38-2's approaches Eagle Avenue heading for Iowa City.
SD38-2 157 along with GP32-2 708 AND ES44AC 503 race into the sunset heading for Newton, Iowa on a late, but snowy fall day.