Cascade Mountains
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.1
Mentions of this place in the documents