I hadn't seen your post, AG. In fact, I didn't even notice the chunks of petrified wood when we visited, but they are seen in many places. I think most of them were probably removed from the site long before it became protected. When I was a child, I saw huge logs of it everywhere. It was seen in nearly every tourist shop. When I was young, shops sold bits of it for souvenirs. Somewhere I probably still have the little piece I got long ago.
