The Aggenstein is a mountain, 1,986 metres high in the Allgäu Alps on the border Bavaria, Germany and Tyrol, Austria. It is located in the Bavarian part of the Tannheim Mountains, a few kilometres south of Pfronten.
Wikipedia https://en.wikipedia.org/wiki/Aggenstein
Address 87459, Germany
Coordinates 47°32'14.008" N 10°33'27.552" E