Rock Springs vs town

Rock Springs and town both are nouns.

Word	Noun	Adjective	Verb	Adverb
Rock Springs	Yes	No	No	No
town	Yes	No	No	No

Rock Springs (noun)	town (noun)
a town of southwest Wyoming near the Utah border	the people living in a municipality smaller than a city
	an urban area with a fixed boundary that is smaller than a city
	an administrative division of a county