ok, heres the problem, I need a hole, booleans are supposed to make holes....well, I set one object (A mountain in this case) as positive and the other (The hole I want int he mountain) As negative, but when I apply the textures and posistion them, I get this nasty looking square thing (The base of the negative objects' terrain) smack in the middle...

I need a nice clean hole in my mountain, how do I do it?