Ancient Monuments

History on the Ground

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Dun Torcusay,dun 290m ESE of Garry-a-siar, Benbecula

A Scheduled Monument in Beinn na Foghla agus Uibhist a Tuath, Na h-Eileanan Siar

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Latitude: 57.4526 / 57°27'9"N

Longitude: -7.4011 / 7°24'3"W

OS Eastings: 76180

OS Northings: 853142

OS Grid: NF761531

Mapcode National: GBR 8930.YMX

Mapcode Global: WGV2R.8YX4

Entry Name: Dun Torcusay,dun 290m ESE of Garry-a-siar, Benbecula

Scheduled Date: 22 August 1991

Source: Historic Environment Scotland

Source ID: SM5119

Schedule Class: Cultural

Category: Prehistoric domestic and defensive: dun

Location: South Uist

County: Na h-Eileanan Siar

Electoral Ward: Beinn na Foghla agus Uibhist a Tuath

Traditional County: Inverness-shire


This monument consists of the lower wall-levels of a galleried dun, a drystone fortification of Iron Age date, standing on a knoll in marshy ground (until recent drainage an islet in Loch Torcusay).

The dun is oval, externally 13m N to S by 11m E to W. Internally it is almost circular, 9m in diameter. The entrance is on the E. In the thickness of the wall are three chambers, on the SE, S and N sides of the courtyard. The maximum surviving wall height is 1.1m along the E side, but elsewhere the wall is reduced to less than 1m.

The area to be scheduled is the whole surface of the erstwhile islet, an oval 40m NE to SW by 25m NW to SE, to include the dun and the area outside the dun within which other traces of settlement may survive.

Source: Historic Environment Scotland

Statement of Scheduling

This monument is of national importance because of the evidence it contains, accessible to excavation, for settlement and defensive architecture during the Iron Age. This importance is enhanced by the waterlogged conditions of the site, which will have helped preserve organic archaeological remains.

Source: Historic Environment Scotland



RCAHMS records the monument as NF 75 SE 5.

Source: Historic Environment Scotland

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