swissALTI3D [1], the digital elevation model of Switzerland and swissSURFACE3D [2], a LIDAR scan of the surface of Switzerland are available as background layer

swissALTI3D [1], the digital elevation model of Switzerland and swissSURFACE3D [2], a LIDAR scan of the surface of Switzerland are available as background layers in several OSM editors, at least those that use https://github.com/osmlab/editor-layer-index https://github.com/osmlab/editor-layer-index [1]: https://www.swisstopo.admin.ch/en/geodata/height/alti3d.html https://www.swisstopo.admin.ch/en/geodata/height/alti3d.html [2]: https://www.swisstopo.admin.ch/en/geodata/height/surface3d.html https://www.swisstopo.admin.ch/en/geodata/height/surface3d.h...