Sunken Ruins Cliff

I've searched both the war3x.mpq & the war3.mpq (which I know wouldn't have that skin, but goes to show my frustration) via the WC3 IE and I can not find the cliff for sunken ruins (either Dirt or Ruined Walls). Maybe this seems like a rather noobish question, but really, where are they? They should be somewhere in Textures, but nope. Can anyone help? Thank you.

dont just try textures...., try all of the catagoires, cause somtims ive seen some things in wrong catagory i forgot wich ones though

I thought all terrain files were in /enviroment or something like that...

Definantly not textures though

im pretty sure textures are mainly just small effect things you wouldnt take much notice of, some heros and some units