Really look amazing. It's too bad that the shadows have to be 'baked' into the texture. Like Python mentionned, this area have to be photograph by drones, the texture on the vertical rocks look perfect, not stretch. It could not have been captured by satellites, is it?
I guess in area where they can use drones to photograph under cloud cover to get ambient lighting, it will make the most realistic landscape texture ever in a 3d world.