Scheduled Monument

Dun nan Nighean, dun, IslaySM13215

Status: Designated

Documents

Where documents include maps, the use of this data is subject to terms and conditions (https://portal.historicenvironment.scot/termsandconditions).

The legal document available for download below constitutes the formal designation of the monument under the Ancient Monuments and Archaeological Areas Act 1979. The additional details provided on this page are provided for information purposes only and do not form part of the designation. Historic Environment Scotland accepts no liability for any loss or damages arising from reliance on any inaccuracies within this additional information.

Summary

Date Added
06/06/2013
Type
Prehistoric domestic and defensive: dun
Local Authority
Argyll And Bute
Parish
Kilchoman
NGR
NR 21088 69107
Coordinates
121088, 669107

Description

The monument is a prehistoric defended settlement or dun, likely to date from the Iron Age (between 500 BC and AD 500). The dun comprises a substantial drystone wall, over 6m wide in places and standing up to 1.6m high, which encloses part of a dramatic coastal promontory. The enclosed area measures 17m by 15m. On the SE side, several rock-cut steps lead into the dun's interior, on the NW side of the promontory, just outside the enclosure, there is a sub-oval underground chamber of drystone construction with a corbelled slab roof. The dun is situated 20m above sea level on the NW coast of Islay, with extensive views westwards across the exposed sea channel W and SW of Islay.

The scheduled area is irregular on plan to include the remains described above and an area around them within which evidence relating to the monument's construction, use and abandonment may survive, as shown in red on the accompanying map.

Statement of National Importance

Cultural significance

The monument's cultural significance can be expressed as follows:

Intrinsic characteristics

The dun takes advantage of a naturally defensive position on a steep rock outcrop with limited access from the SE across the narrow promontory. The enclosure wall runs around the summit of the promontory. It is best preserved in the NE arc where it survives up to 10 courses high. The sole entrance is in the SE arc. In places the wall has collapsed and the spread of rubble and core material is likely to have sealed deeper archaeological deposits. The dun retains a number of particularly interesting features, not often found at such sites, marking this out as an important survival. Two flights of rock-cut steps run up to the dun interior on the SE side, with a possible socket-hole visible in one. Outside the dun on the NW side is an underground chamber, possibly used for storage or as a place of refuge. On the SE arc of the enclosing wall, there may be the remains of a gatehouse and, possibly, an intra-mural gallery or cell.

Overall, the dun survives in good condition and it has not been disturbed by robbing or past excavation. Significant evidence for its form and construction is likely to be preserved. There is high potential for the survival of buried deposits and features beneath and beyond the walls and within the dun interior. Investigation of the interior could enhance our understanding of how the dun was used and how this may have changed over time. Buried artefacts and palaeoenvironmental evidence can contribute to our understanding of how people lived and worked, the extent and nature of trade and exchange, and the nature of the agricultural economy. Pollen and other environmental analyses can indicate the character of the contemporary landscape and provide evidence for how the inhabitants managed and farmed the land. The monument therefore has the potential to contribute to our understanding of the nature of Iron Age settlement and the design and development of these defended enclosures.

Contextual characteristics

This type of defended settlement characterises much of the coastal occupation of Argyll and Atlantic Scotland in later prehistory. Islay is particularly abundant in duns, with 49 known examples, mostly clustered on the Rinns and in the S and SE of the island. They belong to a much broader category of later prehistoric settlement, which includes brochs, forts, crannogs, duns and hut circles. Altogether, over 500 later prehistoric settlements are known in Argyll. It is believed that duns represent the remains of living spaces of small groups or single families. They are largely a coastal phenomenon and tend to be located on locally high ground, along prominent coastal routes or within easy reach of the coast. Researchers think that the visibility of duns was an important factor in their location. This particular example has extensive views westwards across the exposed sea channel to the W of Islay.

The surrounding area is rich in later prehistoric settlement remains, including other broadly contemporary defensive settlements, such as the much larger Dun Bheolain fort which lies immediately to the S. A comparative study of these two monuments in their wider landscape context could enhance our understanding of site location and settlement patterns, as well as the connections between similar and other types of broadly contemporary site in later prehistory.

Associative characteristics

The headland is named as 'Dun nan Nighean' on early Ordnance Survey mapping, which indicates both its antiquity and its early recognition as a defended settlement.

The immediate area was visited by the Welsh antiquary, Thomas Pennant, in the late 18th century. Pennant recorded a tradition that underground chambers served as a hiding-place during times of invasion; it is possible that the underground chamber here was used for such a purpose.

National Importance

This monument is of national importance because it has an inherent potential to make a significant addition to our understanding of the past, in particular, the design and construction of later prehistoric, defended settlements in western Scotland and their place in the wider economy and society. There is good potential for well-preserved archaeological remains to survive within and immediately outside the dun. These buried remains can tell us much about the people who built and lived in the settlement and the connections they had with other groups. The loss of the monument would significantly diminish our future ability to appreciate and understand the occupation of Argyll in the later prehistoric period.

References

Bibliography

References

RCAHMS 1984a, The Royal Commission on the Ancient and Historical Monuments of Scotland. Argyll: an inventory of the monuments volume 5: Islay, Jura, Colonsay and Oronsay, Edinburgh.

About Scheduled Monuments

Historic Environment Scotland is responsible for designating sites and places at the national level. These designations are Scheduled monuments, Listed buildings, Inventory of gardens and designed landscapes and Inventory of historic battlefields.

We make recommendations to the Scottish Government about historic marine protected areas, and the Scottish Ministers decide whether to designate.

Scheduling is the process that identifies, designates and provides statutory protection for monuments and archaeological sites of national importance as set out in the Ancient Monuments and Archaeological Areas Act 1979.

We schedule sites and monuments that are found to be of national importance using the selection guidance published in Designation Policy and Selection Guidance (2019)

Scheduled monument records provide an indication of the national importance of the scheduled monument which has been identified by the description and map. The description and map (see ‘legal documents’ above) showing the scheduled area is the designation of the monument under the Ancient Monuments and Archaeological Areas Act 1979. The statement of national importance and additional information provided are supplementary and provided for general information purposes only. Historic Environment Scotland accepts no liability for any loss or damages arising from reliance on any inaccuracies within the statement of national importance or additional information. These records are not definitive historical or archaeological accounts or a complete description of the monument(s).

The format of scheduled monument records has changed over time. Earlier records will usually be brief. Some information will not have been recorded and the map will not be to current standards. Even if what is described and what is mapped has changed, the monument is still scheduled.

Scheduled monument consent is required to carry out certain work, including repairs, to scheduled monuments. Applications for scheduled monument consent are made to us. We are happy to discuss your proposals with you before you apply and we do not charge for advice or consent. More information about consent and how to apply for it can be found on our website at www.historicenvironment.scot.

Find out more about scheduling and our other designations at www.historicenvironment.scot/advice-and-support. You can contact us on 0131 668 8914 or at designations@hes.scot.

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Printed: 17/08/2026 19:15