Terrestrial images
After World War I and up to the beginning of the 1950s, much of the region of the Alps was topographically surveyed using terrestrial photogrammetry for the purpose of producing the 1:10'000 fortification maps and the 1:50'000 National Map.
![Measurement image of the snow-covered Matterhorn. The frame marks of the measurement image can be seen at the edge of the photograph.](https://prod-swisstopoch-hcms-sdweb.imgix.net/2023/11/14/4a970bac-ead1-4be5-ac0f-8de7464503e1.jpg?auto=format)
Federal Office of Topography swisstopo
Infodesk history
Seftigenstrasse 264
3084 Wabern
Seftigenstrasse 264
3084 Wabern