Using the data a person claimed to have found a great spot I generated a world. Now his place wasn't perfect, nor could I find what he was talking about. However, I found an awsome spot on my own. Its got high areas going 19 z-levels from the lowest spot to the top, many deposits of bauxite, magnetite, coal, and a magma pool all on the surface. Its got HFS, an underground river and pool, and sand. I'll post the save (before embark copy) and screenshot tommarrow as well as another site thats nearly as good.