---
title: "An Entire Planned Roman City Has Been Found Under an Austrian Field"
description: "With a grid of streets, an 8,000-seat amphitheater and possibly a brewery, Stein was a boomtown that lasted barely a century"
author: "Penny Quirke"
published: 2026-09-26T16:27:51Z
modified: 2026-09-26T22:02:11Z
url: https://rews.cc/a/an-entire-planned-roman-city-has-been-found-under-an-austria-b5fa03
language: en
tags: ["archaeology", "history", "rome", "austria", "europe"]
publisher: "Rews (https://rews.cc)"
---

# An Entire Planned Roman City Has Been Found Under an Austrian Field

*With a grid of streets, an 8,000-seat amphitheater and possibly a brewery, Stein was a boomtown that lasted barely a century*

By Penny Quirke · September 26, 2026 · https://rews.cc/a/an-entire-planned-roman-city-has-been-found-under-an-austria-b5fa03

## In brief

- Geophysical surveys at Stein, Austria, revealed a planned Roman city of 25–30 hectares with a street grid and urban blocks
- The city grew beside an auxiliary fort for about 500 soldiers — a ratio researchers call unprecedented in the empire
- An amphitheater for roughly 8,000 people rivals that of Carnuntum; three drying installations may point to a brewery
- Founded around AD 80, the city was abruptly but apparently peacefully abandoned around AD 180, per 643 coins
- Ptolemy’s lost town of Claudivium is a candidate name, but the researchers call the match only a possibility

For roughly fifty years, scholars strolling the farmland near the Danube at Stein, in Austria, kept bending down and picking up Rome. By the time anyone thought to tally the harvest, it amounted to some 2,000 metal objects and 150 fragments of glossy red terra sigillata pottery — the sort of archaeological crumbs that tell you something Roman happened here, without telling you what, or how much of it.

The ‘how much’ turned out to be the interesting part. In 2017, vegetation marks — the crop world’s involuntary confession about what lies beneath it — revealed the corner of a previously unknown Roman auxiliary fort, complete with a tower. Researchers pulled up old aerial photographs and got serious. Since 2021, according to the research team’s report in the journal *ArcheoSciences*, motorized magnetometers have swept roughly 100 hectares, while ground-penetrating radar combed about 50 hectares down to calculated depths of 2.5 to 3 meters, patiently untangling the site’s awkward geology of alternating gravel and sand.

What the machines drew back was a city. A regular street grid subdivided the settlement into proper urban blocks — insulae, in the Roman town-planner’s vocabulary — and, tellingly, the whole layout follows the orientation of the adjacent fort. This was not a shantytown of camp followers accreting around a barracks like barnacles. Somebody with a measuring cord and a clipboard had laid this place out.

## A big city for a very small fort

And here is where Stein stops being merely new and starts being strange. University of Innsbruck archaeologist Gerald Grabherr says the mapped settlement covers about 25 to 30 hectares — attached to an auxiliary fort built for roughly 500 soldiers. According to Grabherr, no comparable case is currently known anywhere in the Roman Empire of such a large, formally planned town growing up beside such a modest garrison. It is rather as though someone built a garden shed and a suburb arrived to keep it company.

The showpiece so far is an amphitheater with an estimated capacity of around 8,000 spectators — on par, the team says, with the one at Carnuntum, a major Roman military center. Roads out of town ran through extensive burial grounds, including a particularly large cemetery to the northwest with graves, funerary monuments and burial mounds of substantial size. Excavation of selected spots has added a homier detail: three Roman drying installations on the settlement’s southern edge that may — the researchers stress may — have belonged to a brewing complex. A frontier town with an entertainment district and, provisionally, a brewery: the urban checklist of a place expecting to stick around.

## Born around AD 80, gone by AD 180

It did not stick around. The evidence puts the city’s founding around AD 80, and a series of approximately 643 coins shows the flourishing settlement was abandoned abruptly around AD 180. There is no burn layer, no smashed gates, no archaeological signature of catastrophe — which leads the researchers to argue the departure may have been an organized withdrawal rather than a rout.

The timing is suggestive. The Marcomannic Wars of AD 166–180 had Rome fighting Germanic groups north of the Danube, and Stein sat in a strategically sensitive spot near a Danube crossing and the Aist valley — one of the shortest routes toward the Moldau region. Several Roman military camps identified north of the river attest to heavy troop traffic in the area. When Marcus Aurelius died in AD 180, his son Commodus wound the wars down and redrew the frontier strategy. The researchers propose that this reorganization pulled the plug on Stein, as military power consolidated six kilometers away at Lauriacum — modern Enns.

The afterlife of the place is legible, if a bit melancholy. Lauriacum expanded dramatically; within about 50 years it had grown to roughly three times the size of the former city. Similar fibulae and bronze-working tools at both sites suggest at least some of Stein’s craftspeople packed up and moved west. And the stone of the deserted city was carted off as building material — the ultimate Roman recycling program.

## So what was it called?

Here the story takes a pleasingly nerdy turn. In the second century AD, the geographer Ptolemy recorded a settlement called Claudivium — a town that later vanishes from the historical record. According to the Innsbruck researchers, Ptolemy’s coordinates for Claudivium correspond surprisingly well with Stein’s location, and he associated the place with a river arriving from the north, which could be the Aist. The chronology fits too: Claudivium disappears from later sources right around when the archaeology says Stein emptied out.

The paper itself — Wallner, Löcker, Grabherr and a dozen colleagues, published in *ArcheoSciences* in 2025 under the admirably honest title *Claudivium? How to discover a new Roman town?* — is careful to call the identification a possibility, not a conclusion. The name, the authors say, may emerge as research continues. For now, the city at Stein remains that rarest of Roman artifacts: a complete, planned, mapped town that lived fast, left young, and has politely kept its own name to itself for 1,800 years. Unless, of course, the brewery turns out to be real. Then we will know exactly what to call it.