GB&W 2407, an Alco RSD-15, smokes it up as it leads the caboose train out of the Illinois Railway Museum grounds during the annual Diesel Days event.

In the setting sun, GBW 2407 shines in the sun outside of Barn 2 during Showcase Weekend 2020.

GBW 2407 puts on a show for the long line of photographers during IRM's Diesel Day Weekend

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", ... (more)

GB&W RSD15 2407 puts up a smoke show as it leads the coach train past the blades at East Switch.

The control stand of the GBW 2407, built in May of 1960 as the Santa Fe 841. This unit is operational at IRM.

GB&W 2407 sits on display outside barn 9 at IRM.

GBW 2407 rests in the steam leads at IRM.

GBW 2407 holds at IRM before diesel days gets under way.

On July 17 the Santa Fe Railway Historical and Modeling Society toured the museum as part of their Chicago convention. For this event a few Santa Fe displays were arranged. Here we have the Green ... (more)

Storm light shines on the classics at IRM's Diesel Department.

Members of IRM's diesel dept have a job briefing as we roll by to complete some switching moves. In this view you have the CE 15 (EMD SW1), GBW 2407 (ALCO RS15), BN 5383 (GE U30C), CNW 6847 (EMD ... (more)

A LS&I local and a WC crew talk about how they are gonna handle the traffic at the mines, In actuality these are some of the equipment being moved around IRM. to get ready for Diesel days.

A line up like this can only be found at the Illinois Railway Museum: GBW 2407, CBQ 504, SP 1518, CNW 6847, WC 7252, and BN 5383... And they all run! A total of 15,900 HP in a row.

GB&W 2407 and UP X-18 sit on display at IRM.