SLSF 1630 at the beginning of "steam day" at the IRM, getting fired up and ready for the day's duties.

UP 6930 and the now gone CNW twins look on at IRM.

Rock Island 4506, on its first day in service, leads the coach train east back into the IRM depot.

C&NW 6847 and BN-3 rest outside the diesel shops at the IRM.

SLSF 1630 runs light on the IRM mainline.

SLSF 1630, along with a CA&E interurban, holds at IRM on Memorial Day.

SLSF 1630 holds at the IRM.

SLSF 1630 pulls a coach train onto the mainline at the IRM.

CB&Q 9911A leads the Zephyr on Track 1 at the IRM.

Rock Island 4506 rolls Eastward and approaches a farmers crossing East on the Illinois Railway Museum at Union, Illinois Sunday, July 8 2018. The newly restored locomotive debuted this weekend. St... (more)

Illinois Railway Museum's Rock Island GP7 makes its grand debut on a perfect summer day leading a Rock Island commuter train into the station

CRIP 4506 leads the coaches on a debut run past Spaulding Tower at the Illinois Railway Museum.

Rock Island 4506, on its first day in service, leads the coach train east across the fields east of Union.

CRIP 4506 awaits a clear signal out of Station Track 2 on its second run of the day.

CRIP 4506 leads the coach train passed the Olsen Road signals.