across Rice Lake by steamboat, and rejoined the train at Hiawatha on the north side. The new operators began taking direct action against the Cobourg line. Some time in 1861 they moved the locomotives to their own yards in Port Hope, and then sabotaged the bridge by removing iron bolts and fittings, taking them for use on the Millbrook line. At some point between 1861 and 1863 the main center section of the bridge collapsed. During a town meeting in 1864, Dumble revealed the successful trickery and sabotage, but offered an optimistic note that the C&PRy still had a shorter route than the Port Hope line, and ended at a better harbour. When Covert was questioned, he claimed that he had removed the iron works for safekeeping, because everyone knew the bridge was going to collapse anyway. Cobourg, Peterborough & Marmora Railway and Mining Company In the late 1840s, the Marmora Iron Works formed as a collection of iron mines in the area around Marmora, Ontario. This was only a few miles from the northern portions of the Trent River where they emptied into Rice Lake. A new plan to service the mines was brought up by W. W. Dean at the 1864 meeting, and in 1865 John Dumble was asked to examine the concept of selling the line to investors for hauling iron. He found an interested party in Pittsburgh, headed by George K. Schoenberger. The town sold the railway to Schoenberger's group for $100,000. The investors also purchased the entire Marmora works as well, and combined the two to form the Cobourg, Peterborough & Marmora Railway & Mining Company (CP&M&M). In spite of the name, the Peterborough section of the line was not used, however, a new stretch of line from Blairton to Trent River was constructed. Ore was loaded onto barges on the Trent then hauled up the Trent and across Crowe Lake to the dock in Blairton. The ore was then driven the short distance to Trent River, where the bottom-opening cars would dump the ore into new barges. These were hauled to the dock in Harwood where the ore was hauled uphill on a steam-powered conveyor and loaded into train cars again. The final haul ended on an inclined ramp on the docks in Cobourg, where they ore was again dumped into barges or steamers, typically bound for Rochester. The line was extremely productive, hauling