Mexican Hat rock! I'm still trying to get a really good photo of it. One of these days things will line up with a low angle sun (I seem to always be there mid-day) and a pretty sky. I kind of like how in this shot the 'hat' stands out a bit due to the shadow on the hills in the background. Ooo, I just thought of an idea. I'll try shooting this under a full moon when I'm there later this month.