Quoted from your link:
"Also called Coast Range. So-named because of their proximity parallel to the sea coast. They extend through the province from Fraser River to Alaska and are a continuation of the Coast Range in the United States, where the name originated - probably with the early settlers. The highest peak in the BC portion of the mountain range is Mount Waddington - 13,260 ft.
Source: Provincial Archives of BC "Place Names File" compiled 1945-1950 by A.G. Harvey from various sources, with subsequent additions"
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