http://www.renderosity.com/viewed.ez?galleryid=472202&Start=145&Artist=garyandcatherine&ByArtist=Yes I did a procedure like this in Bryce years ago. This is what I did: **I created a terrain (NOT A PROCEDURAL) **Then I duplicated it and cut away the area I didn't want. In this case I erased everything but a narrow strip that followed the area I wanted to have a wall surround. (the narrow strip being the wall) ** Then with that little narrow strip of terrain I resized it slightly to go around the pond and stretched its height above the level of the first terrain. ** To give the wall a broken and worn look I went back in to the terrain editor and erased little bits here and there to give it that aged look. ** The result was a wall made from a terrain that followed the contour of the 1st terrain. I hope this helps you. If you want a better explanation, I can do it in VUE and send you a file of it. Just IM me if you need to. G&C