Red Mountains in Arizona - Boondocking outside of Quartzsite, Arizona in fall of 1999. As the sun set in the West, the mountains toward the East turned a beautiful golden color, then red. Hard to photograph, but amazing to see. Photo by Bob Hoffman. Click picture to read more about Quartzsite.
Wunderground has hundreds of great weather-related photos, including sunsets/rises, storms, rainbows, and many other topics.
