All the large mills in Cornwall were connected by rail to the CN and/or CP lines. This photo shows one of the electric engines used in the city to move boxcars of supplies into mills, they also moved mill products to the main rail lines and out of the city. In the RH background is one of the many log piles used to make pulp for paper at Howard Smith Paper Mills, (later Domtar). 

Shared Memory: In the 1940s a steam engine tipped over on Pitt Street, near Sixth Street, the boiler continued to belch black smoke, which blackened the houses along the East side of the street.