Map server application presents the results of the geological maps of the Czech Republic at a scale of 1 : 500 000. Maps describe bedrock geology and additional derived maps: radon risk, engineering–geological zones and quaternary geology.
3.10.2017: The Czech version of the map application was remade into Web AppBuilder and published in https mode. A layer of Mineral Water of the Czech Republic was added. English version of the application was terminated on 12/2018.