Hello guys ! First of all, I'm not English by birth, so I already apologize if I make some mistakes 
Well, I once downloaded the "Diablo Warcraft III" map (which can be found here: http://www.hiveworkshop.com/forums/maps-564/diablo-iii-warcraft-beta-v1-19b-112705/ ), and, when I opened it with the editor, found this:
http://www.noelshack.com/up/aac/deep-f0769e7458.png
I admit I'm not the best at editing (though I really can make beautiful cards. I'm working on a campaign and will post it there once it's finished), but this... this is the first time I see craters like that. I can only raise the gound with the terrain editor, OR make a circular deep crater via trigger, but make rectangular ones... (plus, the trigger-made craters are not conserved with a save)
So I beg you
How can I make craters so deep ? I bet it's by using some other editor, but really, I would really appreciate a clear answer !
Thank you.

Well, I once downloaded the "Diablo Warcraft III" map (which can be found here: http://www.hiveworkshop.com/forums/maps-564/diablo-iii-warcraft-beta-v1-19b-112705/ ), and, when I opened it with the editor, found this:
http://www.noelshack.com/up/aac/deep-f0769e7458.png
So I beg you

Thank you.
