The data here were extracted from the following freely available National Elevation Datasets and other sources. They are based on ground level sources that are not affected by tops of trees or buildings. They include full, continuous coverage of the Alps and Pyrenees, and have been resampled to 1" from the sources below. There was a wide ranging update on 27 March 2026.
USA 1/3" USGS topographic DEM
Canada 3/4" CDED topographic DEM
Japan 10m national DEM data
New Zealand 8m national DEM data, based on 20m contours
Greenland and Antarctica 8-10m Arctic and REMA DEM from Polar Geospatial Centre and similar sources. They are more accurate than the previous 3" topographic datasets, especially in coastal affected by melting ice.
Norway, Sweden, Finland, Denmark 1-2m LiDAR NED
England and Wales full coverage from 1m LiDAR data
Scotland LiDAR coverage of most of the lowlands and southern uploands. 25K topographic elsewhere
Ireland 10m NED in north, 50K topos in south
France 1m LiDAR for most of the south and east, 5m LiDAR elsewhere
Germany 1-2m LiDAR now complete for all provinces
Spain 5m LiDAR
Portugal 2m LiDAR now complete for all provinces
Italy 10m or better local data in most provinces, but Umbria, Marche, Molise and most of Campania are still covered only by less accurate "TinItaly" 10m data.
Austria 10m NED
Switzerland 2m national LiDAR dataset, complete for all cantons.
Poland, Czechia, Slovenia, Netherlands, Belgium, Luxembourg 1m LIDAR NED (numerous small voids in NL)
Slovakia 5m LiDAR
Croatia, Bosnia, Serbia, Kosovo, Macedonia amd northern Albania 25K topographic maps, complete
Romania 25K topographic map sourced coverage west of longitude 27
Bulgaria Data extracted from 5K topographic maps. Mostly complete west of longitude 24, about 50% coverage further east.
Hungary low resolution 25K topographic map sourced part coverage, mostly west of longtude 18
Lithuania, Latvia, Estonia 1-2m LiDAR
Russia Kaliningrad is covered by data extracted from maps from German military. Some other Baltic areas north-east of Estonia are covered by data from 50K topographic maps. Note that there is complete coverage of Russia at 3" resolution, but the scale of the source data is 1:200,000 north of latitude 60, SRTM elsewhere (affected by tree coverage).
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It is my intention to add to the areas covered.
Jonathan de Ferranti
Scotland, March 2026
Download data from 1" interactive coverage map
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