The Dreisesselberg is a mountain in Bavaria, Germany, in the Bavarian Forest that is 1,333 metres high.
Wikipedia https://en.wikipedia.org/wiki/Dreisesselberg_(Bavarian_Forest)
Address Dreisesselhaus, 94089 Freyung-Grafenau
Coordinates 48°46'50.444" N 13°48'11.437" E