Northbound on the Burlington Northern Santa Fe’s Casper Subdivision is a freight led by BNSF EMD SD40-2 No. 6338 at Sodium, Wyoming, on September 1, 1998. Behind No. 6338 is BNSF GP9u No. 1638 and Livingston Rebuild Center (LRCX) GE SF30C No. 9556, both former Santa Fe locomotives.