We've try'd to get to certain places with the 3 bufs in the Exhaustion Zone of the Dune sea, sadly i can confirm that there is nothing apart from the imperial area.
Apart from that we've been trying to get out of the map on mounthains, and we've found some strange places take a look at this link.
there is something on the first picture but we couldn't find out a way to it.
This had our attention on our search http://www.youtube.com/watch?v=Y7Sae...ature=youtu.be
we still don't know what it is.
Thanks to our team http://imgur.com/lkKLkZg