Maps had been made ... (As portrayed in Canada: A People's History) Mackenzie set off with nine men and a dog on May 9, 1793, paddling up the Peace River, looking for the continental divide.

The Deh Cho (the Mackenzie River as it is known) has to be nominated as a wonder because it is one of Canada's longest rivers and one of the world's longest rivers. The Mackenzie River originates ...