An empty Chicago & North Western unit coal train rolls past milepost 110 through Walker, Wyoming, on the afternoon of July 25, 1992. The train is headed back to load at one of the mines in Powder River Basin and is led by GE C40-8 No. 8551, EMD SD60 No. 8034 and C40-8 No. 8533. Walker was a siding on this still single-track portion of the Orin Line.
