minor traces of older rock cut basis on which the mediaeval fort was built
all details in the video below
minor traces of older rock cut ruins. just by themselves they mean almost nothing, but since at at least 1 other place nearby (listed on the megaliths website) they were clearly recognisable, it just shows that it is not an isolated example. probably there are dozens of such sites all over austria
Die Burg Lichtenfels ist die Ruine einer Höhenburg bei Peygarten-Ottenstein im Waldviertel, Niederösterreich, zur Stadt Zwettl-Niederösterreich gehörend.