Open dataset contains data on underground mine workings and on reported impacts of mine workings over the territory of the Czech Republic. Attributes include detailed information about each object, e.g. the exact location, topographical situation, proprietary relation, technical data, the current state of these workings, their hazardousness and possible security measures. There are also links to the signatures of source reports stored in the CGS Geofond archive and to the digital documentation in *.jpg format - e.g. photograph, map cut-out, drawing.

Data from the database are continuously used in monitoring the safety of mine workings according to the Mining Act, in land-use planning, and as a part of the urban planning documentation according to the Building Act.