The map sheets of the Geological Atlas of Switzerland give detailed information about the uppermost layers of sediment and bedrock. Geological formations are represented by colours, conventional signs and symbols, according to their age, composition and tectonic structure. The topographic base used in the preparation of this series is the Swiss National Map at 1:25 000 scale. For each sheet published, there is also an explanatory booklet in which the geological formations and special features depicted on that sheet are described. These maps are an indispensable tool for geologists, engineers, planners, government departments, scientists and schools.

The map of “Switzerland during the Last Glacial Maximum (LGM), at a scale of 1:500,000” shows the maximum extent of glaciation in Switzerland at the height of the last Ice Age about 24,000 years BP. It incorporates the latest results of research on the Ice Age in Switzerland in a clearly legible format.

The Geological Map of Switzerland at 1:500,000 scale covers all of Switzerland and adjoining parts of neighbouring countries. It provides an overview of the distribution of the superficial geological formations exposed in Switzerland. It is thus an important tool for improving the understanding of our environment in the context of sustainable development. It is also an essential aid for education in the fields of environmental and earth sciences, as well as for the identification and prediction of natural hazards. The previous edition appeared more than 25 years ago and the new map shows a significantly improved level of detail. The addition of new data and the revision of older geological records made during recent decades have led to significant improvements in the new version. Thanks to a revised layout, the detailed legend is now easier to read and therefore easier to understand.

The Bouguer anomaly is defined as the difference between the gravity measured at a specific point on the Earth’s surface and a gravity value calculated at the same point assuming that the Earth’s crust is homogeneous. This map shows both the regional negative anomalies associated with the Alps and the positive anomaly of the Sesia–Finero zone that signifies an excess of mass at depth.

The Tectonic Map of Switzerland at 1:500,000 scale depicts the large-scale structural and tectonic units which enable a better understanding of the geological makeup of the Alps.

The Tectonic Map of Switzerland 1:500,000 illustrates the structural and tectonic units of the entire area of Switzerland and adjoining regions: here only the tectonic faults are illustrated. It constitutes an excellent tool for discovering Switzerland geologically and for understanding its environment. It is also an essential aid for education in the earth and environmental sciences. This product is part of the GeoMaps 500 series. It is available as a printed map (folded or plano), pixelmap or vector dataset. For more information on the availability and the format of this product please visit our Geological Data Viewer (www.geologieviewer.ch). This layer is specifically tailored to the Project OneGeology Europe.

The Geological Map of Switzerland 1:500,000 covers all of Switzerland and adjoining parts of neighbouring countries. It presents an overview of the distribution of the uppermost rock strata occurring in Switzerland. It thus provides an important foundation and tool for the better understanding of our environment in the scope of sustainable development. It is an essential aid for education in the fields of environmental and earth sciences as well as natural hazards. This product is part of the GeoMaps 500 series. It is available as a printed map (folded or plano), pixelmap or vector dataset. For more information on the availability and the format of this product please visit our Geological Data Viewer (www.geologieviewer.ch). This layer is specifically tailored to the Project OneGeology Europe.

The Hydrogeological Map of Switzerland at 1:500,000 scale consists of two sheets. The first sheet shows the various groundwater resources in Switzerland and provides information about productivity. The second sheet shows the vulnerability of groundwater resources to possible contamination.

As the department of the Confederation responsible for earth sciences, the Swiss Geological Survey is principally concerned with the following tasks: organising national geological, geotechnical and geophysical surveys, gathering the necessary data, processing and compiling these data in the form of geological maps, and publishing reports, recommendations and guidelines in the fields to which geology is applied (engineering geology and environmental geology).The presented layers (tectonic lineaments and geological units) give a broad overview of the composition and major features of the underlying structure of Switzerland. (Revision: SVN-53)

As the department of the Confederation responsible for earth sciences, the Swiss Geological Survey is principally concerned with the following tasks: organising national geological, geotechnical and geophysical surveys, gathering the necessary data, processing and compiling these data in the form of geological maps, and publishing reports, recommendations and guidelines in the fields to which geology is applied (engineering geology and environmental geology).The presented layers (tectonic lineaments, tectonic units and geological units) give a broad overview of the composition and major features of the underlying structure of Switzerland.