I've rotated each image 180 degrees which makes for an interesting "sky" created by the bottom of Sabino Creek.

I don't remember if I've posted a link to this before, but here is a link to a short write-up I did on Sabino Canyon, near Tucson, AZ: http://colorado.naturephotographers.net/hotspots/Arizona/Sabino_Canyon/Sabino.shtml