In context of overlay "Things" – Unattached Stone / Boulder – https://osm.org/node/13361611149 via StreetComplete 62.0:

Inschrift: 125 Meter ü. NN
Michaelsberg
Stifter CDU Maudach

Attached photo(s):
https://streetcomplete.app/p/319323.jpg
https://streetcomplete.app/p/319324.jpg