Still earning her keep! I wanna say this is an old NP switcher. Moving hoppers at Tacoma yesterday. She sounded great too! Built in 1955 as Northern Pacific 126, SW1200. Didn't stray far from home!
At least dozen years or so back, I caught this one, out of service. Another ex-NP AFAIK. Looking at the truck behind it, might have been swapping out for a bad traction motor. I heard a rumor it was later scrapped, but have never found proof.
I believe it was scrapped, and shortly after they received one of the slug units from the Pasco Hump, which is still in use.