Makes me wish we had a 5x5 model of the earth. The only really freely available terrain data set is 30x30 for the world and there is the 25x25 DEM for Europe by

Makes me wish we had a 5x5 model of the earth. The only really freely available terrain data set is 30x30 for the world and there is the 25x25 DEM for Europe by Copernicus.