The Czech Geological Survey provides some of its datasets for download. List of these datasets can be found on the webpage dedicated to CGS download services. All datasets that are listed there are available for download for free under the Creative Commons BY 4.0 license (Attribution International). Some of the data are available in Czech language only. You must give appropriate credit (cc) Czech Geological Survey and indicate if changes to datasets were made.
In case of any questions or comments please contact the contact persons that are listed on the CGS web page about download services.