The Weinfelder Maar, also called the Totenmaar, is a maar around two kilometres southeast of the town of Daun in the Eifel Mountains, in the German state of Rhineland-Palatinate.
Wikipedia https://en.wikipedia.org/wiki/Weinfelder_Maar
Address 54552, Germany
Coordinates 50°10'34.837" N 6°50'59.994" E