Taken on a recent trip to Arizona(USA), this shot is of Horseshoe Bend on the Paria River, just outside the town of Page, Northern Arizona.
Captured in manual mode and in RAW with a Nikon D300s (handheld) and a Sigma 10/20 lens, set at a focal length of 11mm. Other settings are F10, shutter speed 140th/second, ISO 100. A Heliopan 0.6 filter was attached.
Levels and contrast was tweaked in post processing with CS5.