UP's dirtiest engine makes it's way onto the Mojave Sub before backing into the West Colton Yard. A year ago this engine was barely dirty,http://www.railpictures.net/viewphoto.php?id=109951
I believe this to be the first BNSF SD70ACe to visit the Southern California region. Pure luck seeing it then a 3hr wait to follow it through part of the Cajon Pass. One beautiful engine!