Cascade Mountains vs Cascade Range

Cascade Mountains and Cascade Range both are nouns.

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

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

Cascade Mountains and Cascade Range: 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 Mountains include Cascades.

Cascade Mountains (noun)	Cascade Range (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