Little Wabash River vs river

Little Wabash River and river both are nouns.

Word	Noun	Adjective	Verb	Adverb
Little Wabash River	Yes	No	No	No
river	Yes	No	No	No

Little Wabash River (noun)	river (noun)
a river in eastern Illinois that flows southeastward to the Wabash River	a large natural stream of water (larger than a creek)