Chapter I

Near the point at which the great Continental Divide of the Rocky Mountains crosses the Canadian border another range edges in toward it from the south. Between these ranges lies a space of from twenty to forty miles； and midway between them flows a clear, wonderful river through dense forests. Into the river empty other, tributary, rivers rising in the bleak and lofty fastnesses of the mountains to right and left. Between them, in turn, run spur systems of mountains only a little less lofty than the parent ranges. Thus the ground plan of the whole country is a good deal like that of a leaf: the main stem representing the big river, the lateral veins its affluents； the tiny veins its torrents pouring from the sides of its mountains and glaciers； and the edges of the leaf and all spaces standing for mountains rising very sheer and abrupt from the floor of the densely forested stream valleys. In this country of forty miles by five hundred, then, are hundreds of

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