CGS Metadata catalogue is the central access point to search information (metadata) about data sources that are maintained and provided for public by the Czech Geological Survey. It is based on MIcKA system, which enables the user to work with metadata of spatial data in accordance with international standards (ISO, OGC and INSPIRE). Metadata are administered centrally in a database, edited and viewed through a web interface, and published by means of a standardized catalogue service (CS-W). More information can be found on the About page.