This high-peaked range’s northernmost point is Lytton Mountain, just southeast of
the confluence of the
Fraser and
Thompson Rivers, and its southward run terminates at Lassen Peak, in northern California.
Known also as the Cascade Range, it draws its name from the Lewis and Clark expedition
of 1806, though
Vancouver and
Broughton had both sighted the Cascades in 1792—in reference to a deep
Columbia River gorge on the present-day Washington-Oregon border, in which the explorers evidently
found immense cascades.
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