We went for a short hike at this one. We followed the Petrified Forest Trail and a little of the Trail of Sleeping Rainbows, but we determined that was a little too hot and tough for Calli.
There were quite a lot of uphill walking, rocks, ledges, tree roots, and various pokey things.
Some of the Petrified Forest State Park's FAQ:
As a rock collector, this trail was pretty difficult for me. I desperately wanted to snag some of these fine treasures. But I am proud to say, I left the State Park fully in tact for the enjoyment of generations to come. I also hope others are as responsible.
I've always had a fascination with petrified wood, so here are a couple sites with pictures and explanations of how it happens. Science: this one uses microscopes to show the crystal formations in the cells and also shows which minerals create the different colors in the wood. Other sites Wikipedia on Petrified Wood & Gemology for Kids.
I just like the firewood sign beside all dry grasses. There were campfire bans across every park while we were visiting.