Caption: Finally!!! I did not think I was ever going to see one of those elusive UP locomotives, a block of 40 which the CP purchased earlier in the year..........and here is X-UP 3639 sporting a temporary "CP" on the flanks. It is trailing a recent CP rebuild, 8101, photographed as it rolled over the South Saskatchewan River. Train is heading east toward Moose Jaw. Forgot to write down the train number as this thing had me scurrying to get a few decent shots before it headed out of town.