We really do have one of the largest concentrations of petrified wood here ... with ancient trees that have crystallized over millions of years, essentially turning to stone.

Until Tuesday, the tree's tumble hadn't been shown publicly, but discovery of the fallen tree reverberated across the United ...

The huge trees fell to the earth and slowly transformed into stone. In the late 1800s, visitors collected petrified wood and threatened the unique landscape of the Petrified Forest. In 1906 ...