A westbound BNSF grain train exits Tunnel 3.9 and is about to enter Tunnel 4, east of Belton, Montana, on September 8, 1999. The train is led by two “Heritage I” GE C44-9Ws and is running along the Middle Fork of the Flathead River on the scenic western portion of the Hi Line Subdivision route over Marias Pass that parallels on the southern border of Glacier National Park.
