Petrified Forest -- these trees are 225 million years old! Erosion & uplift have revealed them as the soil around them disappears and the ground rises from below, pushing them up. Some are still in their original form as they broke into pieces & some moved apart when they tumbled down slopes before coming to rest again. The soil conditions turned them into quartz and they look like they're filled with colored glass.

The terrain in the park is spectacular, huh?

Petroglyphs found in the Petrified Forest -- there were two sites where these were visible.

Painted Desert -- wow -- what else can we say?