The Four Corners, where New Mexico, Colorado, Utah and Arizona meet is the only spot where four US states meet. The meeting point itself is a rather dismal Navaho trading post covered in small stalls and parking spaces, but the region is simply stunning. Here are a smattering of photos-- gory details on Flickr.
Incidentally, if you are at all keen on American folk/country music, the album "Clean Shirt" by Waylon Jennings and Willie Nelson is superb.
Forest fire on the way to Bryce CanyonBryce Canyon Raven at the Painted Desert