The Nottawasaga River is a river in southern Ontario, Canada. Its headwaters are located on the Niagara Escarpment and Oak Ridges Moraine. It flows through the Minesing Swamp, recognized as a wetland of international significance (Ramsar Convention site), and empties into Nottawasaga Bay, an inlet of Georgian Bay, at Wasaga Beach, Ontario.
This was a partially overland route from York (Toronto) north to the Holland River.
It was on the NottawasagaRiver that the Nancy then received and transported supplies to the British garrison at Fort Mackinac, between Lakes Huron and Michigan.
A 360 mile canoe trip was made from Fort Mackinac to the NottawasagaRiver by a British scout, Lieutenant Livingston with a message warning Lieutenant Commander Worsley to hide the Nancy up river away from the approaching Americans.
The NottawasagaRiver served as a natural route for the logs to be transported to the lumber mills.
Establishing a commercial harbour at the mouth of the Nottawasaga was viable as the schooners, tugs, and steamers of the day easily navigated the lower reaches of the river.
The wreck, underlining the deficiencies of using the Nottawasaga as a harbour, may have been a deciding factor, which led to the railway officials decision to end the rail line several miles to the west at what is now Collingwood.