0
As for the mentioned settlement hiatus in Mecklenburg and Brandenburg (roughly) I have that from a publication from 2016 where all newer finds (a lot) are evaluated and this conclusion is drawn.
As for Bohemia regardless of the mountains (Sudets and Ore mountains) the Elbe river is considerd an important migration path. It also applied when the Germanics spread upstreams into Bohemia somewhat before the turn of times.
Bookmarks