The analogue sheets of the Prussian geological map in their respective last edition formed the basis. The scanned originals are also available in digital form on the Internet.
Geological Map 1 : 25,000 (Historical GK25) 1937
Fig. 1: Sheet overview of the Geological Map 1 : 25,000 for the Berlin area with sheet number, sheet name, author, edition and year of publication
Image: Umweltatlas Berlin