While driving home from work one day I saw this sunset forming between Cottonwood and Sedona, Arizona. I frantically looked for a safe place to pull off. The first road I turned on was gated and I couldn't get a good view. The second road gave me this view. Arizona has some amazing sunsets.

Canon EOS Rebel XSi 1/13 second at f 18, ISO 400, 18-55mm at 29mm