Nature
The Rocky Mountain Trench is a vast, nearly straight valley stretching about 1,600 kilometers along the western side of the northern Rocky Mountains in British Columbia, from Montana to near the Yukon border. Shaped partly by glaciation but chiefly by major faulting, it separates the Rockies from the Columbia and Cassiar mountains and also serves as an important drainage corridor for four major river basins. Long used by Indigenous peoples, especially the Kaska Dena, as a travel route through difficult country, it was later explored and surveyed by European and colonial travelers. Despite its promise as a transportation corridor, much of its northern reach remained undeveloped and unusually wild.
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British Columbia · Canada
