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Public domain Windows Desktop wallpaper from US National Parks

Petrified Forest National Park - Arizona

With one of the world's largest and most colorful concentrations of petrified wood, multi-hued badlands of the Painted Desert, historic structures, archeological sites, and displays of over 200-million-year-old fossils, this is a surprising land of scenic wonders and fascinating science.

Photo credit to National Park Service


Mark W. Kaelin has been writing and editing stories about the IT industry, gadgets, finance, accounting, and tech-life for more than 25 years. Most recently, he has been a regular contributor to,, and TechRepublic.