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 Rocky Mountains are a vast mountain system in Western North America, extending north-south from Canada to New Mexico, a distance of about 3,000 miles (4800 km). The highest peak is Mount Elbert, in Colorado, which is 14,440 feet (4401 m) above sea level.