Many day offs ago, BF and I went to the Palo Duro Canyon. It's apparently the 2nd largest canyon in North America (guess which one is first).
BF had never seen a canyon before (he's a NY'er) so he was a bit more enchanted than I. Nevertheless, a canyon is still an impressive feat of geological history.
Here's a few photographic highlights:
More can be found on my flickr photostream a few pages back... I uploaded them awhile ago but forgot to blog about it.