I have been downloading the dem data for Illinois. I am downloading the GeoTIFF format to use with GPSMapEdit. When I receive the zip file, it containes the .tif file plus .aux, .prj, .ftf all with the same number. Plus there is a lot of files for METADATA. Do I need any of these besides the .tif to get DEM2TOPO to run correctly?
I don't think you need any of the other files. I have never removed them; I just open the tif file and once I process the contours I delete all the files.
Thanks for the help.