When people think of ALCo diesels, they probably think of something like this:
With the Illinois Railway Museum's coach train underway, GB&W 2407, commonly nicknamed the "alligator", touches the mainline on the eastbound run to Kishwaukee Grove. With a large group of railfans watching, The RSD-15 spews out a bunch of smoke and exhaust as it passes the historic semaphore signals. (Taken during IRM's annual Diesel Days event)
