This is a famous paleontological site dating back to the late Upper Cretaceous (Campanian, 75-71 million years ago) where numerous important vertebrate fossils were discovered in 1921-1922. When I arrived, I expected to see the site from afar, but instead, most of the rock formations are below the entrance level. The reddish color of the rocks is striking (the photos don't do it justice, they're much redder), and the Gobi Plateau stretches out in the distance in the background.