From <http://www.statesman.com/news/content/news/stories/local/10/28/1028caves.html>:
>you dig in the ground looking for bones," he said excitedly. >No, he didn't find any bones, but he did walk away with a couple of "cool" >rocks. It's too bad those statements made it into print. It makes it sound like cavers both dig at potential archaeological sites and take things out of caves. The general public no doubt equates rocks with formations. What happened to the conservation message? :-( Mark Minton