Caption: It was a day of moving little traffic beyond Port Rob on some relatively rare mileage for the crew of 562. After switching out 421 and building trains for 531 and 539, they took one tank down the Humberstne Spur to Vale in Port Colborne and returned to Port Rob light power, where they immediately headed north on the Thorold Spur light power to retrieve a solitary mill gon out of storage.