Sometimes, Utah Rails is just the only and best source... http://utahrails.net/utahrails/savage-bingham-garfield.php
Ken, assuming you saw a blue and orange loco like this, I found this on the Savage Services website: Savage owns or operates over 55 train terminals and railcar storage yards across North America. Our services for class one railroads include operations, switching, infrastructure engineering, construction, operation planning, fueling, track and railcar inspection and maintenance, training and technology. We move over 40 million tons of materials in our +1600 railcars annually. Savage can help you get the most from your rail solution
Thanks guys. That is what I needed to know. It was an SW1200RSm. Will try to get a photo posted in the Weekend Proto Fun topic tomorrow.
Photo now uploaded, in post number 3 of this topic: http://www.trainboard.com/grapevine/showthread.php?153043-Weekend-Proto-Fun!-8-30-2013