Let us start by comparing the Mackenzie Corridor with that great Canadian highway the St. Lawrence. In the sixteenth century the latter offered the obvious means of entry into the new land of Canada. The pioneers could not have realized the cluster of large towns and cities which was to arise along the great waterway; but most of them were sure that the St. Lawrence would always be the main surface route whereby the resources of eastern and east-central Canada would be reached and exploited. Hence all detailed accounts of the geography of this area in the early days are of special interest, since in general the route is still as important as ever.

It seems to the writer that we of the twentieth century can consider the Mackenzie Corridor in somewhat the same light as the pioneers did the St. Lawrence. There is not much in the way of settlement in the north-west region at present; perhaps the total, including Indians and Eskimo, is less than seven thousand settlers. But of one thing we may be sure, and that is that in the next century the population will increase largely, and that the chief centres of settlement and supply will be much where the pioneer folk built their dwellings.

One of the chief purposes of this study is to put on record in a somewhat uniform manner the main characteristics of all the famous posts along the Mackenzie River, and, in a later paper, along the Yukon River, and this for two reasons. Canadians of today will welcome a detailed account of the way of life of the pioneers in geographical language; while the writer hopes that this somewhat hasty survey will be a sort of jumping-off place for similar surveys made, say, every fifty years in the future.