The geological map 1:25 000 for Germany and adjacent regions has been composed in large parts as early as 1853 – 1943. Many of these map sheets are freely available online, and many more could be, once science, e.g. you, states interest in them. The ‘GK25 list online & pd’ lists over 900 map sheets of the Prussian geological map 1 : 25 000 that can be found online (free download), as well as more than 600 map sheets that can be digitised by FID GEO free of charge, once a notice of demand is received. For notification, please use our request form or write an e-mail (firstname.lastname@example.org).