There are Eighteen (18) parts of this mesh to download as separate files. ASTER GDEM Version 2 is a 30 metre definition DEM, its better than the version 1 data that ERSDAC, of Japan and NASA originally released, but it does have its limitations. GDEM has been obtained from a satellite that uses stereoscopic infrared scanning cameras, this brings with it problems in the resultant data.....where it sees the tops of trees, buildings etc, as the ground terrain. If you look at the jpg image with the terrain type errors shown as a graph, you will see that the only 'safe' terrain to use this data with - in FSX - is scrubland, or desert terrain. Its hopeless in defining the terrain in places like Europe - with all the artificial structures, (buildings) and different types of woodland, so any mesh I create from this data won't include areas like that....it will be more desert type terrain, and scrubland. I won't be doing Greenland because something about the ice around Greenland, (or any other land mass with ice) it creates false data. It does give enough fine data to reveal railway lines, and some roads though. This mesh has been made for FSX only. Grateful thanks to ERSDAC, and NASA for making this data freely available to the public. ASTER GDEM Copyright (c) 2009 - 2011 Earth Remote Sensing Data Analysis Center (ERSDAC) All rights reserved. ASTER GDEM is a product of METI and NASA.