A petrified forest is created when fallen trees are washed into a space and then buried under layers of mud, ash and other materials, depriving the oxygen required for rot. Over millions of years the wood’s cellular structure form into a stone like material.
Generally considered the world’s best example, the Petrified Forest National Park is in northern Arizona, situated in the Painted Desert (next posting).
The setting and colors of the Petrified Forest is amazing. Most look just like wood, some even appear to have been cut with a saw.