I know how big it was, my point was that the "detail" of the zone isn't nearly as much as people thought it was. It was just a bunch of repetition except for a few areas. The image I linked shows many of the copy and pasted elements in just PART of the Coerthas map. You could see it in all the zones.

The snow is a result of the calamity iirc, and likely has to do with a certain primal. Also, What we have for Coerthas is only the eastern half.