Ancient ‘rusty treasure’ emerges from river with enough iron to forge 500 swords
Archaeologists have identified at least 500 Iron Age iron bars found in Austria as Europe’s largest known collection of its kind. The discovery points to large-scale iron production and trade along the Danube more than 2,000 years ago.
The bars weigh more than a metric ton and were recovered in 2019 during gravel extraction near Deinham. Radiocarbon dating suggests they date to the third or second century BC and may have been forged in Bavaria; researchers consider a shipwreck the likeliest explanation for their presence in an old river channel, although no vessel remains were found. The iron could make roughly 500 swords, but that is an estimate, and it may instead have been used for tools or jewellery.
In short
- Austria’s find is Europe’s largest known Iron Age iron-bar collection.
- More than a metric ton of iron was found in an old Danube channel.
- A shipwreck is suspected, but no remains of a vessel were recovered.
Explained simply
The Iron Age was a period when people increasingly made tools and weapons from iron. More than 2,000 years ago, the Danube was an important route for moving goods through central Europe, linking communities and places where materials were made.
Iron bars were useful raw material that could be shaped into many objects, including swords, tools or jewellery. Their quantity and location can help archaeologists investigate how iron was produced and traded, though the bars alone cannot show exactly what they were meant to make or how they came to be there.