The Lithofacial Map of the Quaternary 1 : 50,000 (LKQ 50) is a map series of the GDR covering nearly the whole former state territory besides the South of Saxony and Thuringia. The series consists of 123 map sheets, each of which encompassing several horizon maps mostly complemented by about five cross sections. Specifications concerning map content and structure provides Cepek (1999). The data of the LKQ 50 map sheet 1669 Brüssow provided here were digitised in frame of the Geo3D-Oder project of the German Federal Institute for Geosciences and Natural Resources (BGR). The data include elements of the six horizon maps 1669-2, 1669-3, 1669-4, 1669-5, 1669-6 and 1669-7. The topics of these maps are defined in a general legend (version 3). Furthermore, the legends of the single horizon maps provide a stratigraphic and genetic classification of the depicted strata. For each horizon map the digitised elements comprise several polygon shapefiles of the single layers, a polyline shapefile of isohypses related to layer bases, a point shapefile of lithological profiles and a polygon shapefile of additional information concerning areas of heavy strata deformation and insufficient investigation. Non-numeric contents of the attribute tables are encoded by numbers and are translated in full text by means of key tables. The key table Normalprofil allows the stratigraphic and genetic classification of horizons displayed in horizon maps by code numbers of the column N_ID. Detailed descriptions concerning the data structure are provided in the attachments. Reference: Cepek, A. G. (1999): Die Lithofazieskarte Quartär 1 : 50.000 (LKQ 50) – Eine Erläuterung des Kartenkonzepts mit Hinweisen zum Gebrauch. - Brandenburgisch. Geowiss. Beitr. 6, 2: 3-38, 3 Abb., 2 Tab.; Kleinmachnow