Читать книгу Arctic Searching Expedition (Sir John Richardson) - comprehensive & illustrated - (Literary Thoughts Edition) онлайн

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Frog Portage is the most northerly point of the Saskatchewan basin, and lies in 55° 26′ N. latitude, 103° 20′ W. longitude. Below it there is a remarkable parallelism in the courses of Churchill and Saskatchewan rivers, both streams inclining to the north-east in their passage through the "intermediate primitive range," the district from whence they receive lateral supplies being at the same time very greatly narrowed. Several other considerable streams run near them, and parallel to them, but do not originate so far to the westward. In their widely spreading upper branches, and their restricted trunks, they resemble trees. As they are not separated high on the prairie slopes by an elevated water-shed, they may be considered, in reasoning upon the direction of the force which excavated their basins, as one great system, having an eastern direction and outlet, interposed between the Missouri and Mackenzie, which discharge themselves respectively into southern and northern seas.

The Churchill River is the boundary between the Chepewyans and Crees, but a few of the latter frequent its borders, resorting to Lac la Ronge and Isle à la Crosse posts, along with the Chepewyans, for their supplies.