An IC SD40-2R leads some CN power on the daily westbound to Waterloo.
A 337 train rolls into Dubuque, Iowa. After some switching in Dubuque Yard, the train will head west out to Peosta to meet it's counterpart 338 train.
Having just met a 338 train, IC 6014 crawls out of the hole at Peosta with the 337.
M-337 has a lot of power today 107 cars into Dubuque