1.500 years old.
Daugbjerg Kalkgruber is Scandinavians oldest limestone mine, its history going back more than 1.500 years in time
Man started to excavate limestone by the open cast method. It then progressed to underground workings to allow them to mine all the year round.
The limestone was then used to create mortar for the construction buildings etc..
Lime from Daugbjerg travelled far.
Lime from Daugbjerg after being converted into mortar, was taken via The Ox Road. This is the name given to an ancient trackway in Denmark and Schelswig-Holstein. The route runs from Viborg via Flensburg to Hamburg.
The lime was used in the construction of Dannevirke. This was an important linear defensive earthwork across the neck of the Cimbrian peninsula. Initiated by the Danes in the Nordic Iron Age at some point before 500 AD.
Gottorf Castle in the city of Schelswig in Germany was built using mortar from Daugbjerg.