Iron AgeEarly Iron Age, 6th–4th century BC · Łysa Góra, Bagienice, Masovian Voivodeship, Poland
A crushed Celtic warrior's helmet turns up on a Polish hill far north of the Celtic world, on the Amber Route
The bronze Berru-type helmet at Łysa Góra in north-eastern Poland may mean that members of a La Tène elite came north for Baltic amber in the 4th century BC.
In brief 3 key points
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- A La Tène bronze helmet was found crushed in a pit with iron tools
- Nearly 350 metal finds point to bronze-working and amber trade
- The authors think southern elites may have come in person; that still needs testing
On a sand dune in the marshes of northern Mazovia, archaeologists have found a bronze helmet of the kind worn by the warrior elite of the La Tène culture, the Iron Age world usually called Celtic. It lay crushed and broken in a pit with charred remains, an iron scythe and four adzes, far outside the La Tène homeland.
The site, Łysa Góra or 'Bald Hill' near Bagienice, is described in the journal Antiquity by a team from the State Archaeological Museum in Warsaw and the University of Warsaw. They call it a fortified base, a production site, a ritual centre and probably a hub of the Amber Route between the Baltic and Central Europe.
A local people with southern goods
In the sixth to fourth centuries BC the hill was home to people of the West Balt Barrow Culture, who kept Late Bronze Age traditions and lived differently from most of Central Europe. Around the middle of the first millennium BC they defended it with timber-and-earth ramparts, a palisade and a ditch.
Since excavations resumed in 2024, nearly 350 metal objects have been found. Many are bronze ornaments broken up and bundled, probably for remelting. Amber beads and an unfinished amber ring show that amber was worked here. The site has also produced 31 mostly fragmentary Early La Tène brooches and ring ornaments of around the mid-fourth century BC. In the marsh below the dune lay two deposits of bronze rings and earrings with glass beads, which the team reads as ritual offerings.
Visitors, or trade?
The helmet is of the Berru type and closely resembles finds from Dürrnberg in Austria. In La Tène society such helmets marked high status. The authors argue that it may be more than an exotic import and could reflect the presence of people from the south, including members of their elite, perhaps helping to run this stretch of the amber trade.
They do not rule out that it arrived through trade from hand to hand, as smaller La Tène objects did, but find that less likely because no comparable helmets are known outside the La Tène zone in the fourth century BC. They say the idea still needs testing. Lead isotope studies are planned to trace the metal's source.
Sources (1)
Peer-reviewed studyfrom State Archaeological Museum in Warsaw and University of Warsaw
- Łysa Góra in north-eastern Poland: a key Early Iron Age site on the ‘Amber Route’ | Antiquity | Cambridge Core (Bluesky buzz)
Paper: Kaczyński et al., Łysa Góra in north-eastern Poland: a key Early Iron Age site on the 'Amber Route', Antiquity (2026)
Edited by Guiseppe Weijermars
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