Cascade Range vs Cascade Mountains

Cascade Range and Cascade Mountains both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cascade Range	Yes	No	No	No
Cascade Mountains	Yes	No	No	No

As nouns, Cascade Range and Cascade Mountains are synonyms defined as:

Cascade Range and Cascade Mountains: a mountain range in the northwestern United States extending through Washington and Oregon and northern California; a part of the Coast Range

Other synonyms of Cascade Range include Cascades.

Cascade Range (noun)	Cascade Mountains (noun)
a mountain range in the northwestern United States extending through Washington and Oregon and northern California; a part of the Coast Range	a mountain range in the northwestern United States extending through Washington and Oregon and northern California; a part of the Coast Range