Ring vs. Rang vs. Rung. You can tell when to use ring, rang, or rung by whether you need the present, past, or past participle (used with has or have) form. I always ring the bell after I knock. He rings twice before entering.
The rocky mountains passes through six states. The six US states  are: New Mexico, Utah, Colorado, Idaho, Montana, and Wyoming.
North Central Region. Rocky Mountain. States Included: Arizona, Colorado, New Mexico, Utah, Wyoming. Rocky Mountain Region Tucson Affiliate. Mideast. States Included: Indiana, Kentucky, Michigan, Ohio, West Virginia. Mideast Region. Northeast. States Included: New Jersey, New York, Pennsylvania. Northeast Region Capitol District-NY Affiliate Central New York Affiliate