UP 6770 (AC4400CW) leads a freight under threatening skies at Crescent, Colorado.

UP 6770 leads an empty grain train east of Boca.

From across the lake, UP 6770 is seen moving SB after a small snowstorm leaves just enough snow to cover the ground.

A chilly day after a light snowfall as UP 6770 heads SB past the big red barn.

With the Seven Hills area of Henderson framing the background, this long coal train is doing its best to muster up 10mph climbing the grade from Sloan to Erie.