Last updated
January 1, 2000
Terms of use
Open use. Must provide the source. Use for commercial purposes requires permission of the data owner.


The 1:500'000 geotechnical map (GK500) of the Georesources Switzerland Group shows the subsurface strata classified according to lithological-petrographic criteria. The legend is designed to represent the technical use of the subsurface (extraction of mineral resources, building projects). In this representation, the rocks are subdivided according to their formation (genesis), e.g. deposits from rivers and glaciers, solidification of magma or transformation of crystalline rocks through the effects of pressure and temperature.



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Additional information

Issued date
January 1, 2000
Modified date
Bundesamt für Landestopografie
Contact points
Language independent
Further information
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