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 Canadian Rocky Mountain Tour. The Canadian Rockies were our first stop on our road trip this summer (2011). We started in Spokane Washington, we arrived the evening of 23rd July and spent a bit of time the next morning getting stuff ready for the trip.