Hah!! when all else fails, try blind groping!! The map doesn't work, so I managed to find it by dragging over areas till I saw something remotely like it in a little 1" x 1/2" preview that you eventually get when you actually want to download something. Now I just have to figure out how to actually get it into Vue (which is about as easy as finding the data in the first place). I'm still more than open to any suggestions anybody might have on converting the terragen file, as that is still likely to be much much more painless (as painless as these things can be anyway) than what I'm about to try. Oh, and that "new format" ended up being even worse than dem's (if I'm remembering correctly) The new usgs sponsored format was supposed to be SDTS, but unfortunately that has proved to be even more horrible than dem files, not to mention unsupported as yet in the 3d community.