Roman BritainCaister-on-Sea
Roman Fort · Military

Caister-on-Sea

Roman Britain
Pleiades ID: 79365
Site type
Fort
Category
Military
Latitude
52.6501
Longitude
1.7194
Overview

History & context

Caister Roman Site is a Roman Saxon Shore fort, located in Caister-on-Sea, Norfolk, England. It was constructed around AD 200 for use by units of the Roman army and navy, and was occupied until around 370-390 AD. This fort was possibly known as Gariannonum, although the single record that describes it as such may also mean the Roman site at Burgh Castle.

The fort was originally 3.5 ha (8.6 acres) in size and roughly square in shape, with large stone perimeter walls 4 to 5 m (13 to 16 ft) high, earth ramparts and ditches of 175 m (574 ft) in length on all four sides. There were defensive towers at the corners and fortified gate houses in the middle of each side

At the time of its construction, the site of the fort would have been on the north side of an estuary, with a pebbled street from the fort's south gate leading a short distance to a harbour or docks. In around AD 260 a fort at Burgh Castle was constructed on the opposite side of the estuary, with both forts probably serving to protect Roman shipping in the estuary.

Between 1951 and 1955, a section of the fort was excavated with the main structures left exposed, including part of the south gate, the western section of the south wall perimeter defences, building foundations, and main road. The remainder of the site, approximately 3.15 ha (7.8 acres) now lies under modern housing.

Inside the current visitor entrance is a large defensive ditch, the innermost of a series of ditches around the fort, part of the south gate, and to the left of the gate the remains of a small rectangular guard chamber.

Just to the north of the south wall, and on a roughly east–west alignment are the remains of a building of approximately 45 m (148 ft) in length with at least six rooms of unequal size, and a further wing of the building extends northwards at the western end. On the southern side is a parallel wall which could be part of a portico, and perhaps would have served also to retain the inner face of the earthen bank behind the south wall of the fort. The second room from the west contains an example of a hypocaust heated floor. On the north side of the building is a corridor running along the southern and south eastern sides of a rectangular courtyard beyond. It is likely that the building was in use during the later third and fourth centuries AD and likely to have served various domestic and industrial functions at different times. There is evidence that the building was severely damaged by fire in the later fourth century. Within the courtyard area are parts of other possibly earlier buildings, which include for various structures and the remains of a corn-drying kiln and a water tank.

Source: Pleiades — A Community-Built Gazetteer and Graph of Ancient Places. View the Pleiades record →

About this site

Questions & answers

What is Caister-on-Sea?

Caister Roman Site is a Roman Saxon Shore fort, located in Caister-on-Sea, Norfolk, England. It is recorded in the Pleiades gazetteer of ancient places as a fort site from the Roman period in Britain.

What type of Roman site is Caister-on-Sea?

Caister-on-Sea is classified as a Roman fort — a military site in the Pleiades ancient world gazetteer. Roman Britain's archaeology encompasses thousands of sites ranging from legionary fortresses and marching camps to villas, temples and towns.

What other Roman sites are near Caister-on-Sea?

Several Roman sites lie within a short distance, including Burgh Castle Roman fort, vicus, pre-Conquest monastery and Norman motte and bailey castle (8.8 km), Roman camp and settlement site W of Horstead (26.6 km), Roman sites outside town walls (28.9 km). Aubrey Research maps over 2,200 Roman sites across Britain, drawn from the Pleiades ancient world gazetteer.

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Everything a full report reveals about Caister-on-Sea

This page covers the Roman site at Caister-on-Sea. A full Aubrey report for the area pulls together this site alongside scheduled monuments and everything else the record holds within a few miles:

Overview
An interactive map of the location with every monument and battle plotted, and a plain-language history built only from what the record holds.
Monuments
The legally protected scheduled monuments around the location, each with its period, type and significance.
Battlefields
The battles and sieges fought on this ground, mapped and set on a timeline of the wider conflict.
Roman Britain
The Roman roads, forts and towns near here, and the Iron Age people who held the land before Rome arrived.
Domesday
The settlement's entry in the 1086 Domesday Book: who held it, what it was worth, and the people who worked the land.
Civil War
The Civil War fighting, garrisons and recorded militaria in this area, woven into the arc of 1642 to 1651.
Geology
The bedrock beneath the site, its age and rock type, reaching back hundreds of millions of years.
LiDAR
Laser-scanned terrain that reveals earthworks hidden under fields and woodland, with likely features flagged.
Local Names
What the street and field names around here actually mean, and the history buried inside them.
Historical Maps
Ordnance Survey maps from the 1800s, layered over the location as it stands today.
Literature
The books, county histories, charters and archives that mention this place, quoted with their sources.
Legal
The protected sites nearby and the metal-detecting, access and treasure laws that apply to this ground.
Spotlight
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Target Zones
For detectorists: the most promising ground to search nearby, ranked by confidence, with what to expect.
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