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.
From New Mexico, the mountain range stretches through Colorado, Utah, Wyoming, Idaho, and Montana. At the International Border, the part of the range known as the Canadian Rockies passes through the provinces of Alberta and British Columbia, and the Northwest Territories and Yukon Territory of Canada. The Rocky Mountain range is part of the Cordilleran chain which reaches from Cape Horn to the Arctic Circle.