/ Dictionary / Index R Rocky Mountain States: Meaning and Definition of Find definitions for: Rock'y Moun'tain States" Pronunciation: [key] those states in the region of the Rocky Mountains, including Colorado, Idaho, Montana, Nevada, Utah, and Wyoming, and sometimes Arizona and New Mexico. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Rocky Mountain spotted fever Rocky Mountain whitefish Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language