Pike's Peak vs Pikes Peak

Pike's Peak and Pikes Peak both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pike's Peak	Yes	No	No	No
Pikes Peak	Yes	No	No	No

As nouns, Pike's Peak and Pikes Peak are synonyms defined as:

Pike's Peak and Pikes Peak: a mountain peak in the Rockies in central Colorado (14,109 feet high)

Pike's Peak (noun)	Pikes Peak (noun)
a mountain peak in the Rockies in central Colorado (14,109 feet high)	a mountain peak in the Rockies in central Colorado (14,109 feet high)