Cascade Range
noun
a mountain range extending from N California to W Canada: highest peak, Mt. Rainier, 14,408 feet (4322 meters).
Also called
the Cascades.
British Dictionary definitions for cascade range
Cascade Range
noun
a chain of mountains in the US and Canada: a continuation of the Sierra Nevada range from N California through Oregon and Washington to British Columbia. Highest peak: Mount Rainier, 4392 m (14 408 ft)