ATDI Free Digital Elevation Model (DEM) Server September 16, 2006 by gisuser Just enter the coordinates of a spot to download a DEM in SDTS format – The cartographic data proposed here is in SDTS format http://www.atdi-us.com/SDTS_DL_b.htm Related Posts:Free eBook: Python 3 Object-Oriented ProgrammingNOAA wants to hear from users about OpenData101 Ready Made Excel Templates