Geological maps

The Swiss Geological Survey’s geological maps currently form the sole nationwide dataset relating to the structure of the underground in Switzerland. They thus make a valuable contribution towards the exploration and sustainable use of the underground. Both digital datasets and 3D models of the underground can be derived from these maps.

Extract from the Travers sheet, taken from the Geological Atlas of Switzerland
Extract from the Travers sheet, taken from the Geological Atlas of Switzerland 1:25,000 (GA25)

Production and content

Geological mapping of the earth’s surface (e.g. information from outcrops, quarries, etc.) forms the main basis for the production of geological maps. Geological units are interpreted according to their composition, age and location and are depicted on a topographic map together with various graphic elements. swisstopo produces maps at scales of 1:25,000 (Geological Atlas for use as the basis for the prevention of natural hazards, protection of groundwater, construction projects, etc.) up to 1:500,000 (overview map of Switzerland for studying the geological structure of the country).

Field mapping is supported through the use of modern surveying methods such as the evaluation of aerial images and digital elevation models, and it is supplemented with other basic data from boreholes and geophysical surveys. Both digital datasets and 3D models of the underground can be derived from these maps.

Prevention, exploration, construction

Geological maps currently form the sole nationwide dataset relating to the structure of the underground in Switzerland. They form an essential basis for dealing with numerous relevant geological issues associated with natural hazards, the protection and use of groundwater, mining of raw materials, extraction of energy and realization of infrastructure projects.


Federal Office of Topography swisstopo Seftigenstrasse 264
P.O. Box
3084 Wabern
Tel.
+41 58 469 01 11

E-mail


Relevant authority

Swiss Geological Survey
Tel. +41 58 469 05 68
E-mail


Print contact

Federal Office of Topography swisstopo

Seftigenstrasse 264
P.O. Box
3084 Wabern

Map

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