I stumbled across the blog of a guy who is stationed in Antarctica. He shamelessly asks for comments, so if you have the time, surf on over and tell him hello. His blog is called If You Visit My Site, Please Leave a Comment.
He has some pictures of him and his girlfriend setting rocks upright alongside a river. It is very odd looking and I would imagine a little creepy if you happened to walk along there and see all those rocks set up that way. (That was before Antarctica, obviously.)
Anyway, tell him I sent you over. :-)