A Facebook correspondent responds to this post:
“The Cascades” as a discrete entity do not exist without people to name them. But if it bugs you that a state is “home to” a natural feature of the landscape, you can always use <state> features | boasts of | contains <name of natural feature>.
… none of which are particularly satisfactory – particular to the literal, for I don’t see some collection of folks in an arbitrary state “boasting” in unison about a set of mountains that have existed for a millenia.
Or perhaps they would. The ways of the tribal have often mystified me.