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.
The name for this region comes from the proximity of the Rocky Mountain range to each of these states. In some cases, these states are further separated into the Northwest Mountain States (Idaho, Montana, Wyoming) and the Southwest United States (Arizona, New Mexico, Colorado, Nevada, Utah).