Geological maps

The sheets of the Geological Atlas, based on the sheet layout and topographic background of the Swiss National Maps, provide detailed information on the uppermost sedimentary and bedrock layers/units. The Geological Atlas provides an important basis for decision-making in fields such as tunnelling, scientific research and investigations of building sites and natural hazards.

A range of small scale geological, tectonic, hydrogeological, geophysical and paleoglaciological maps of Switzerland is in course of preparation. These maps give a broad overview of the composition and major features of the underlying structure of our country.

Various different geological and tectonic maps at scales from 1:25,000 to 1:100,000 supplement the information given in the Geological Atlas of Switzerland and the Geological Map 1:500,000.