Santa Fe GE C44-9W No. 604 and a Montana Rail Link EMD SD45 power Burlington Northern Santa Fe train 207 through Tunnel 3.9 east of Belton, Montana, on the pretty autumn afternoon of October 9, 1996. The train 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.