Rock Island heritage GEVO 513 heads downhill towards East Amana with the Iowa City turn in tow on a cold February morning.

Rock Island heritage GEVO 513 accelerates through West Liberty after dropping a couple of cars on the siding

513 comes to a stop in front of the ex-Rock Island depot in West Liberty preparing to spot a couple of cars on the siding.

An Iowa Interstate CBBI train slides through downtown Victor, Iowa behind Rock Island heritage unit #513.

The westbound BICB waits on the siding for the eastbound to clear the main.

IAIS 513 East rolls into the curve leading the CBBI, and passes the station sign at West Liberty, IA. Big time kudos go out to Scott Marsh for the guide along in the chase!

The paint is already worn off the snow plow on new GEVO 513 as it leads the CRIC through Homestead.

Frozen solid. IAIS 513 crosses the frozen Cedar River on a neat bridge, and will meet the BICB in just a couple miles.

Iowa Interstate's heritage unit blasts past the CSX facility in Seneca with an ethanol train.

513 leads a short CRIC eastbound.

After a short delay due to an automatic switch that would not reverse, the crew of the CRIC 513 east slowly creeps up the east leg of the Yocum Connection wye and onto the IAIS east main.

IAIS' Rock Island heritage unit has the point of an eastbound at Victor.

#513 brings the East train across the Iowa River into Iowa City Yard for a crew change and power swap out.

#513 gets a break between drifts as it's snow packed face leads the East train through Marengo.

Rock Island heritage GEVO 513 gets it introduction to winter. After plowing drifts for the last thirty miles, the east bound CBBI passes through Homestead on a blue sky winter morning.