2 Mackenzie’s Voyages discoveries cannot be seen in proper perspective except against a background of history. In such a brief essay as this must be, only the barest outlines of the earlier story can be sketched. His exploits as an explorer place him in the first rank among the score or so of resourceful men whose travels and discoveries in remote parts have served to amplify our know- ledge of the world’s geography. That he was a keen business man, a capable administrator, and a man of broad vision, were matters of greater importance to his fur-trading associates than the fact that he had per- formed feats equal to anything in the history of exploration. The reader, however, derives an additional pleasure from his versatility, for, like the Elizabethans, he moves in far camps with a gallant spirit, and a masterful mind that no untoward circumstance can daunt. It is the purpose in these pages to follow his track to the Frozen Sea, and then to the Pacific, with sufficient references to his private life, his business activities, and the events of the time to give perspective to his work as an explorer. The stage on which this romantic drama was enacted covered more than half a continent, and was variously referred to in the literature of the fur-trade as le pays d’En Haut, the Indian Territory, the Interior, and by a more recent public as the North-West. When Mackenzie was still a clerk in Montreal it was virtually a terra incognita. Moreover, it is necessary to a proper understanding of the story that a résumé of the explorations and discoveries of his immediate predecessors should be given. The first two chapters therefore summarise the French and British advances north-westward, while an account of the growth and recession of Spanish and Russian dominion on the Pacific will be found in chapter vi.