Within the range of Sötern isolate intermediate basalts are opened, similar as those in the Freisen area. It is determined that among other things at the pattern of the agates.

If good findings were on the fields approximately around Sötern possible in earlier times, then these fields are unfortunately used today as meadows and findings are no longer possible.

A further place of discovery in the area Sötern - Karpensteins Quarry - was filled up in the course of the building of Autobahn A 62.