Slot Canyon in the Quebrada de las Conchas, near Cafayate (Argentina)
No photoshop. The lines are called "lens flare" (optical defect), and they are caused by the sun light entering directly into my wide-angle lens.
This slot canyon is located near Cafayate in Argentina, in a region that looks a lot like Utah or Colorado.
For more information about the Quebrada de las Conchas, try www.google.com/search?ie=UTF-8&q=...