Ancient Monuments

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Kanovium Roman Site

A Scheduled Monument in Caerhun, Conwy

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Latitude: 53.2169 / 53°13'0"N

Longitude: -3.8331 / 3°49'59"W

OS Eastings: 277698

OS Northings: 370439

OS Grid: SH776704

Mapcode National: GBR 62.1CCS

Mapcode Global: WH65J.3D0Q

Entry Name: Kanovium Roman Site

Scheduled Date:

Source: Cadw

Source ID: 3296

Cadw Legacy ID: CN001

Schedule Class: Defence

Category: Fort

Period: Roman

County: Conwy

Community: Caerhun

Built-Up Area: Conwy

Traditional County: Caernarfonshire


A Roman military settlement set at a strategically important point on a ridge overlooking the Conwy river, is the last intermediate fort in a defensive chain that ran along the coastal road from Chester to Caernarfon. It was occupied, with some breaks, from the time of Agricola's campaign in AD 77/8 through to the fourth century. The settlement centres on an auxiliary fort, a near square stone walled enclosure, 130-140m across. This was the scene of extensive excavations in 1926-9. At the foot of the river cliff traces of the bathhouse explored in the early nineteenth century can be seen. The settlement is known to have extended along the ridge to the north, extensive remains being glimpsed from the air and in geophysical survey. It was fringed by cemeteries and a possible circular shrine or tomb has been identified on the north. There is some, though not conclusive, evidence that the nearby dock is a Roman structure. Roads are known to have led from the settlement, including those to St Asaph and Tomen-y-Mur.

The monument is of national importance for its potential to enhance our knowledge of Roman settlement and defence. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. The structures themselves may be expected to contain archaeological information concerning chronology and building techniques.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Source: Cadw

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