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Y Gaer, St Nicholas

Also known as, or recorded in historical documents as;
Cottrell Ringwork; Coed y Cwm

In the community of St Nicholas And Bonvilston.
In the historic county of Glamorgan.
Modern authority of Vale of Glamorgan.
Preserved county of South Glamorgan.

OS Map Grid Reference: ST08457476
Latitude 51.46435° Longitude -3.31913°

Y Gaer, St Nicholas has been described as a certain Timber Castle.

There are earthwork remains.

This site is a scheduled monument protected by law.


Fine, large raised ringwork surrounded by a ditch, with a causeway across the south side. The outline of a rectangular bailey is found to the south. (Salter, 1991)

An oval enclosure, c.46m NE-SW by 40m, defined by a strong bank and ditch, having a SE-facing entrance, opening onto a poorly defined rectilinear enclosure, c.90m NW-SE by 66m. (Coflein)

A ring motte 48m in diameter with a bank 1.5m high, and surrounded with a ditch 1.5m deep. To the S, is a roughly rectangular bailey 80m long by 60m wide. Good defensive site with raised interior but no sign of internal buildings; bailey discounted as glacial terrace. (Glamorgan-Gwent Archaeological Trust HER–ref. RCAHMW 1991)

The monument comprises the remains of an Iron Age (800BC-AD74) defended enclosure. It consists of two oval concentric enclosures, separated by a space of approximately 10m. The inner enclosure measures 65m long from east to west by 50m, the outer measures 120m long by about 105m. Each enclosure is defended by a single bank which has been reduced to a scarp except on the eastern and western sides of the inner circuit and on the north-west of the outer circuit. The banks are 10.5 to 12m wide. The internal height of the banks is slight except on the north-west of the outer circuit where it reaches 1.5m. The external bank height averages nearly 2.5m. A shallow external ditch 6-9m wide is visible along part of the western side. The entrance through both ramparts is on the north; the inner entrance appears to be slightly in-turned but its western side is disturbed. A stony hollow at the centre of the enclosures is probably the site of a building which is shown on the Ordnance Survey map of 1813. (Scheduling Report)
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Sources of information, references and further reading
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This record last updated 06/07/2016 18:44:16