A new version of the map application History of the geological mapping of the territory of the Czech Republic has been launched in April 2018 (in Czech version only). This map application makes available two unique geological map sets from the 2nd half of the 19th century (manuscript geological maps at a scale of 1 : 28,8k and geological maps of the Crown Lands of Bohemia at a scale of 1 : 144k – so called Haidinger maps). More information about the maps and their processing can be found on the webpage of the CGS archive.