Smithsonian Magazine · People & society

2,200-Year-Old Iron Cache Unearthed in Danube River

Workers dredging gravel from the Danube River in Upper Austria accidentally discovered a significant cache of iron bars, estimated to be around 2,200 years old. Archaeologists have hailed the find as the largest single discovery of its kind in Europe.

The discovery was made in 2019 when construction workers unearthed rusted, double-pointed iron objects. Authorities were alerted, leading archaeologists to recover at least 500 bars, totaling 193 complete ones and fragments.

The iron bars, averaging just under a foot long and weighing about 4.5 pounds each, are estimated to have totaled at least 2,200 pounds.

Archaeologists believe these were semi-processed objects for forging. The quantity could have produced approximately 500 swords or 8,000 iron nails, enough to equip many warriors.

Dating to the 3rd or 2nd century B.C.E., the exact circumstances are unclear. Researchers theorize the bars were lost in a shipwreck during river transport.

The large quantity suggests a valuable exchange, possibly involving significant assets.

The find highlights advanced iron production in the Danube region then. Researchers suspect the bars were forged in Bavaria and lost while traveling downstream.

Further analysis aims to pinpoint the raw metal's origin.

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