The “ Keltenwall “, a Celts Bank, consists of an East- and West Bank and was repaired for two times by the
Celts. Inside this Bank they built a quadrangular earthwork. This is a unique building. By the “Schlackenwall”,
a volcanic cinder, as from year 2004, there are excavations to prove, that the Celts are producing glassware.
First results showed, that the Celts used Rhyolith in ovens to produce glass.