Archaeologists have identified a massive hoard of ancient iron bars recovered from the Danube River in Austria as the largest such cache ever found in Europe. The collection, comprising 500 iron bars, dates back to between the third and second centuries B.C. and contains sufficient metal to forge weapons for an entire army.
The discovery originated in 2019 when construction workers extracting gravel near the village of Deinham noticed unusual double-pointed iron objects. They reported the findings to the Austrian monument authority. Peter Trebsche, an archaeologist at the University of Innsbruck, noted that it was “nothing short of a minor miracle” that the significant historical artifacts were not sold to scrap dealers.
In a study published on September 21 in the journal Antiquity, Trebsche and co-author Marion Berranger of the University of Technology of Belfort-Montbéliard detailed their analysis of the collection. From hundreds of iron fragments pulled from gravel heaps, the researchers identified 193 complete bars and 307 partial ones. The complete bars averaged 11.2 inches (28.5 centimeters) in length and weighed approximately 4.5 pounds (2 kilograms). Together, the total weight of the assemblage is roughly 2,200 pounds, or one metric ton.
These double-pointed, semifinished bars—often referred to as ingots—were intermediate goods intended for blacksmiths to forge into final products. According to Trebsche, the iron could have been used to produce around 500 swords, enough to arm a large group of warriors, or up to 8,000 iron nails.
Because the iron was unearthed during industrial gravel extraction using a large bucket excavator, the original archaeological context was destroyed, preventing scientists from determining precisely how the metal ended up in the river. While ritual deposition is a possibility the researchers acknowledged, they stated that most studies on river finds suggest iron bars were typically losses incurred during transport.
Before the invention of trains, waterways were the primary means of moving heavy goods in ancient cultures. If the bars were lost in a shipwreck, they likely originated upstream from the discovery site. Similar iron bars have been found in Manching, Germany, approximately 125 miles (200 kilometers) away, leading the team to speculate that the Deinham bars may have been forged in Bavaria. Researchers are currently analyzing elemental traces in the metal to further clarify its geographic origin.
Trebsche described the find as incredible evidence of the increased iron production capacities reached in the Danube region during the Late Iron Age, noting that such a large quantity of iron transported and available in a single transaction was remarkable for the period.
Leave a Reply