The 2504 is probably my second all-time favorite after the 1802. For whatever reason the 2502 was an allusive unit for me to photograph. This is undoubtedly the best shot I ever got of her.
 
A black locomotive with white, white snow on a bright sunny day made for challenging images to work with.
 
This image was taken in May of 1986 as my days as an Alaskan resident were drawing to a close.