At Montezuma Castle (I still flinch when I write that!) there were wonderful stands of Arizona Sycamores - wonderful pale trees against the sky and the rocks. As soon as I saw them I knew that I would render the images I took as black and white, rather than colour.
The bark of these trees looked a lot like some of the gum trees at home - patch worked with layers. You can also see here the bark has been rubbed smooth by hundreds of fingers and hands. These patches form "soft" looking sections within the image - but thats how the tree looked. It was as if these were special places that attached more attention that the rest of the tree.
A sat on a wall near the tree and just as I suspected, people who walked past reached out to touch the tree. I actually wondered if they were all aware that they were doing it.