Ozark Mountains vs Ozark Plateau

Ozark Mountains and Ozark Plateau both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ozark Mountains	Yes	No	No	No
Ozark Plateau	Yes	No	No	No

As nouns, Ozark Mountains and Ozark Plateau are synonyms defined as:

Ozark Mountains and Ozark Plateau: an area of low mountains in northwestern Arkansas and southeastern Missouri and northeastern Oklahoma

Other synonyms of Ozark Mountains include Ozarks.

Ozark Mountains (noun)	Ozark Plateau (noun)
an area of low mountains in northwestern Arkansas and southeastern Missouri and northeastern Oklahoma	an area of low mountains in northwestern Arkansas and southeastern Missouri and northeastern Oklahoma