Central Lake
The following geographical objects are designated as the Middle Sea :
in Baden-Wurttemberg:
in Brandenburg:
- Mittelsee (Kloster Lehnin) near Kloster Lehnin
- Mittelsee (Höhenland) near Leuenberg
- Mittelsee near Märkisch Buchholz
in Mecklenburg-Western Pomerania:
In North Rhine-Westphalia: