Aosta
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redazione
Access
The municipality can be reached from the Turin-Mont Blanc motorway, which crosses the Aosta Valley longitudinally; the Aosta exit is dedicated to the regional capital. The ordinary road network is provided by the Valle d'Aosta state road , which runs along the valley floor from Pont-Saint-Martin to the Mont Blanc tunnel, passing through the town centre. The Aosta railway station is the terminus of the Chivasso-Ivrea-Aosta line, operated by Trenitalia (TI); the service continues to Pré-Saint-Didier, while the route to Turin is subject to periodic infrastructural changes that may alter journey times. The reference airports are Turin-Caselle and Milan-Malpensa. Local public transport is guaranteed by regional buses with stops in the centre and in the main districts. In the winter months, roads to the hillside hamlets may be affected by snowfall.
Introduction
Aosta is the capital of Valle d'Aosta and the main administrative, historical and cultural centre of the region. Located at an altitude of 583 m in the central valley floor, it rises at the confluence of the Dora Baltea and the Buthier torrent, in a position that has determined its role since antiquity as a junction between Piedmont and the Alpine passes of the Piccolo and Gran San Bernardo. The morphology of the site is typical of a wide and flat glacial valley floor, enclosed by terraced slopes and elevations exceeding 2,500 metres. Founded in 25 B.C. as a Roman colony with the name Augusta Praetoria Salassorum after the defeat of the Salassi tribe by the legions of Augustus, the city has preserved an urban layout of Roman origin that is still clearly legible in the current road layout, an element that defines its territorial character and conditions its perception even today.
.Description
The municipal territory occupies the central sector of the main valley, on a plain shaped by glacial and fluvial action, with relief rising rapidly towards the Punta Chaligne to the north and towards the slopes leading to the lateral valleys of Cogne and Gran San Bernardo to the south. The Dora Baltea forms the main hydrographic axis, while the Buthier delimits the eastern sector of the valley floor. The urban landscape alternates between the compact historic centre and the districts of 20th-century expansion and the hamlets on the slopes, where rural elements and cultivated terraces remain.
The oldest evidence of human habitation dates back to the area of the present-day Saint-Martin-de-Corléans district, where archaeological investigations have brought to light a prehistoric sacred area that is one of the most important in the western Alps. The Roman colonial layout, with its cardo and decumanus still recognisable in the current topography, is documented by a monumental ensemble in an exceptionally well-preserved state: the perimeter walls, the Porta Praetoria, the Archus of Augustus, the Roman Theatre and the bridge over the Buthier define a material stratification between the ancient and the contemporary city without significant discontinuities.
In the Middle Ages, Aosta assumed a central role in the political organisation of Aosta Valley. The Charte des franchises of 1191 marked a significant turning point in relations with Savoy, formalising local prerogatives that would remain in force for centuries. The monumental complex of Sant'Orso and the Cathedral of Santa Maria Assunta document the religious and cultural importance of the centre between the early Middle Ages and the Romanesque period. Between the 17th and 18th century, the town went through a phase of demographic and economic contraction, only to regain vitality during the 19th century, in connection with the valorisation of Roman remains and the development of mountaineering as an organised practice. This is the context of the activities of figures such as Georges Carrel, who contributed to the diffusion of mountain culture and the birth of the first local associations.
In the 20th century, the settlement of the Cogne steelworks significantly changed the urban and social fabric, leading to an expansion of construction towards the southern and western suburbs and a significant demographic growth. The industrial sector has now largely been superseded by the prevalence of the tertiary sector, with regional administrative functions, commerce, services and cultural activities.
The municipality is a junction for access to the main side valleys and the natural starting point for hiking itineraries towards the Punta Chaligne, the hillside hamlets of Arpuilles and Excenex and the routes connecting with neighbouring municipalities. A network of hilly footpaths complements the offerings of the urban centre with outdoor possibilities within easy walking distance of the town centre.
Information
General Data
Area: 21.39 km²
Main elevation: 583m
Maximum elevation: 2,607m - Punta Chaligne
Number of inhabitants: 33.124 (as of 31.10.2025)
Name in dialect: Veulla
Name of inhabitants: Aostani
Patron Saint: San Grato (7 September)
Neighbouring municipalities: Charvensod - Gignod - Gressan - Pollein - Roisan - Saint-Christophe - Sarre
Province of origin: Valle d'Aosta
Region: Valle d'Aosta
Country: Italy
Institutional site: https://www.comune.aosta.it