One afternoon last September we caught this beautiful locomotive on a weigh station along I-5 South of Tacoma. I knew about the White Pass and Yukon Route but knew very little about their locomotives. I now know that it is #91, a GEX3341. One in a series of 11 Diesel-electrics built by General Electric between 1954 and 1969 (source).Looks like it has been nicely restored and from what I read also re-powered by Global Locomotive. Visit whitepassfan.net to see the history of this locomotive in photos.