History Schmistory: December 9. These Woods Rock!

1962: The Petrified Forest National Park is established in Arizona. Local trees are too petrified to speak.

By Kumar Appaiah [CC BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons

By Kumar Appaiah [CC BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons