Locked within the stones and fossils of Petrified Forest National Park lies a record of life, death, and resilience during one of Earth's most extreme periods of environmental change.

With no trees, undergrowth, or official state designation, this underrated spot in Wyoming is famous for 50 million other ...

When we picture forests, images of the towering Redwoods of California or the lush tropical rainforests of Costa Rica, like those in Monteverde's first ever tree-climbing park, may come to mind.

Petrified Forest is best known for its ancient trees that have crystallized over 225 million years into rainbow colors. The park also features fossils from huge 18-foot crocodile-like creatures known ...

The current 346 square miles of Petrified Forest open a window on an environment more than 200 million years old, one radically different from today's grassland. Where you now see ravens soaring ...