Source of much of the iron that made the armor for the knights.
The Erzberg mine is a large open-pit mine located in Eisenerz, Styria, in the central-western part of Austria, 60 km north-west of Graz and 260 km south-west of the capital, Vienna. Erzberg represents the largest iron orereserves in Austria, having estimated reserves of 235 million tonnes of ore. The mine produces around 2,153,000 tonnes of iron ore per year. It is also the site of the annual Erzberg Rodeo hard enduro race.