I recently started a thread on the GC,forums regarding the new Earth caches that were placed in and around Arcadia N.P. Seems it is creating quite a variety of responses. Check it out here: http://forums.groundspeak.com/GC/index.php?showtopic=147909

Becket and I did all 4 of the caches today. We both laughed as we were not into Earth Science and sort of baffled by the test questions. But the cache owner did allow us to log them. They were fun, we learned a lot, and could be combined with other regular caches. It is interesting the dialog on the other site off your post.