For Trainboard members interested in UP locomotive roster information, here is a link to what I believe is the most comprehensive data on the subject: Don Strack's Home Page This site includes information on Diesel locomotives, a comprehensive UP locomotive roster, and historic information about Utah railroads. It is one of the most informative sites that I know of. I hope you enjoy it.
Thanks Kevin, Don's site is a great source of info I provide a link from my site also. I've just been too lazy to download Adobe Acrobat so I can view his latest roster. John B