The most accurate terrain model of Switzerland is swissALTI3D. As a high-resolution, digital terrain model, the dataset describes forms of terrain in Switzerland without objects or development. The raster dataset allows 3D visualisations and 3D simulations and can be used, among other things, for analyses in hazard maps, avalanche forecasts, visibility analyses, land-use planning, and energy and communication systems.
Unlike swissALTI3D, where the data stems from various high-resolution surveying sources, the digital elevation model DHM25 was derived from the national map 1:25 000. It is also ideal as the basis for 3D visualisations and visibility analyses.