Voyages from Montreal, on the River St. Laurence, Through the Continent of North America, to the Frozen and Pacific Oceans; In the Years 1789 and 1793. With a Preliminary Account of the Rise, Progress, and Present State of the Fur Trade of that Country.

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Mackenzie was the first white man to cross the Rockies, discover the river named for him, following it to the Arctic Ocean, and to write the early history of the fur trade.