Finally, we reached my favorite canyon in all the world, Canyon de Chelly. We arrived late in the day, when it was raining, but fortunately as we entered the park, the rain broke, and we got some nice views, a little sun, and lots of rainbows.
A full rainbow over Spider Rock (not my actual best picture or anything, just a full rainbow. Which I'd had my tripod by then, would have maybe looked a little better in HDR with those shadows):
[As always, click through for the rest, newer pictures to the right.]