On an 8-day road trip to the Gobi desert in the summer of 2005 we also visited Bayanzag which do indeed look and feel like flaming cliffs when you are stuck trying to push your car out of the sand in 40+ degrees. Having driven past dozens of horse skeletons daily certainly highlighted the seriousness of being prepared in such a remote area. On the dinosaur theme we also visited the Natural History Museum in Yolyn Am which had several fossils found locally including eggs. We ended up sleeping in a back room in the museum for lack of anywhere else to stay at the time too. Nothing came alive in the night ;) As the largest source of dinosaur fossils in the world this should be an easy and automatic nomination, or at worst combined with the other Gobi TWHS.