click image for a larger view

I shot this at the Grand Canyon in 2007.
I've tinkered with several captions for it.
I might make it into a poster... any caption ideas?

A few caption ideas:

"The only way of finding the limits of the possible is by going beyond them into the impossible."
Arthur C. Clarke

Constant dripping hollows out a stone.
Lucretius

God allows U-Turns... me

Well there you have it.
Daniel