Pretending to be a Alco, by pouring out the smoke. CNW SD18's 6636,6647 work the Dumper Job at Wells. The two units were originally SD24's but were rebuilt to SD18 status by CNW.
CNW 6636 rests at the Escanaba ore yard between shifts on the dumper job. the 6636 was an SD24 that CNW rebuilt into an SD18.
SD24m #6636 in full operation life safer livery and GP38-2 #4709 perform yard switching duties.