It's amazing how erosion shapes the rocks over the years. This archway was the entrance of the Palm Wash Slot Canyon in Anza-Borrego.
I was playing around with this image and I really wanted bring out the starkness of the desert. The infrared filter in Nik Color Efex did the trick.
As the sun went down, the wispy clouds started changing colors. It was just the beginning of the fantastic display.