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Heritage classified

Key figures

Origin and history

Ambrussum, located in Villetelle, Hérault, is an archaeological site in a strategic position in the Vidour Valley between Nîmes and Montpellier. Founded at the Iron Age (VIII–II century BC) as a Celtic stronghold, it became a Gallo-Roman agglomeration after the Roman conquest (II century BC). The site is divided into two areas: the hill of the Devès, home to the oppidum and its forum, and the lower district, where a road station develops along the Domitian way, with inns, thermal baths and craft workshops. The Ambroix bridge, crossing the Vidourle, symbolizes its key role in the exchanges between the Cevennes and the Mediterranean.

The site has its peak under the Roman High Empire (I–II century AD), with a structured urbanization around the Domitian Way, including domus, places of worship (like an altar dedicated to Fortuna) and road infrastructure. The low station, organized in specialized islands (hotels of the publicus curriculum, carron forge, thermal establishment), illustrates the economic and social life of the period. The decline began in the third century, although partial reoccupations persisted until the fifth century. After the Roman abandonment, the Ambroix bridge remained in use in the Middle Ages, before being gradually destroyed by floods and material recovery.

The first modern records of the site date back to the 17th century, with drawings of the bridge by Anne de Rulman, followed by sporadic excavations in the 18th and 19th centuries. Systematic research began in 1967 under the direction of Jean-Luc Fiches, revealing remains ranging from Neolithic to Late Antiquity, including Celtic ramparts, necropolises, and votive objects. Ranked as a Historic Monument in 1974, Ambrussum is now an open site for the public, with an archaeological museum (since 2011) and a tour of its heritage.

The toponymy of Ambrussum remains enigmatic, associated with an ambr- root present in Gaul, Spain and Italy, possibly linked to a pre-Indo-European substrate. The ancient sources ( bronze coins bearing "AMBR", Roman routes like the Puisinger table) confirm its importance as a stage on the Domitian way, between Nemausus (Nîmes) and Sextantio (Castelnau-le-Lez). The site also shows early exchanges with Italy, as evidenced by a bronze fibule of italic origin discovered near the bridge.

Recent excavations, notably by Maxime Scrinzi (from 2016 onwards), revealed details of daily life, such as the "carron house" or the hotel reserved for imperial officials (cursus publicus). Votive objects, coins and tools (harness staples, Roman weights) illustrate commercial and craft activities. The site, marked by recurrent floods of the Vidourle, also shows architectural adaptations (upgrading of buildings, flood-proof walls) to address these natural hazards.

Ambrussum thus embodies the transition between the Celtic world and Romanization, with a local autonomy (own monetary strike) while integrating into the imperial network. Its gradual abandonment reflects the upheavals of late antiquity, while its modern rediscovery makes it a laboratory for the study of Roman infrastructures and provincial life in Narbonnaise.

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