[hga]

Of those three I've only been to the Grand Canyon, my family otherwise went to more obscure places including very obscure ones where my father hunted elk, and it's as you say. Is there anywhere else in the US where you can stand on one bank of a river and look out/down/whatever at a tributary for miles and miles and miles? The whole thing certainly made a grand impression on me, even after previously seeing many amazing mountains and mountain ranges.