Built new PS files to do the compoundization, as I figured out that part of the problem with the view size on the original was that I hadn't accounted for the way the hexes spread out due to the interleaving of 4 different maps. So only the central chunk of the view was available, with everything else getting clipped by the edges of the canvas. The new Hex file has the dimensions of 8192x8192, and I have successfully imported in the Elevation view and plotted it. However, the file is now too big for the Save for Web. *rofl* It throws an error when I try to save a JPEG, even a smaller one. So no more thumbnails until I have everything imported and arranged, and I can flatten and shrink the file back down.