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.
Rocky Mountain National Park, located in northern Colorado, encompasses an area of 416 square miles (265,769 acres). Among its special features are beautiful mountain vistas (114 named peaks above 10,000', with Longs Peak at 14,259'), and thousands of varieties of wild plants and animals.