The passenger special crosses U.S. Highway 36, in the wide expanse of eastern Colorado. This locomotive is the last of the "Centennial" units still operating.

A passenger special moves through an industrial area before heading east across the prairie. This locomotive is the last of it's kind still operating.

A rare sight to catch this unique locomotive pulling an engineering special through the Moffat Tunnel, as a westbound manifest waits for it's turn.