Every so often when I pass the St. Clair Power Plant during my travels to hunt down ships, I will pass one of the switcher engines at the St. Clair Power plant. Generally they are not in a position where I can catch them.
Yesterday I was able to catch one because it was in a position where I could get a decent picture.
This particular engine is an EMD SW-600 and was acquired by Detroit Edison in 1954. It looks pretty good for being over 60 years old. Although, I suspect it probably sees less use than some of the mainline engines.
This engine is an SW-1001 and was acquired in 1968. It looks newer but the Detroit Edison mascot is worn off.