Geological Map 1 : 25,000 (Historical GK25) 1937
Supported with ERDF funds the set of high-resolution maps was converted into digital form from 2009 till 2013 on the initiative of the Brandenburg State Office for Mining, Geology and Raw Materials (Landesamt für Bergbau, Geologie und Rohstoffe Brandenburg, LBGR) in order to make it available for modern working methods.
The geodata were taken over for a section of Berlin and its surroundings, and the presentation was adapted to the Berlin requirements. Berlin and its surroundings are represented in 15 aggregated legend groups and colours. For this purpose, some of the 124 legend units in the area were grouped differently by colour, and the colouring was partly changed with respect to that of the Brandenburg State Office for Mining, Geology and Raw Materials (LBGR).