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Dun an Achaidh is an Iron Age fort located in Argyllshire, Scotland, occupying a landscape shaped by ancient bedrock of the Lewisian Complex. This metasedimentary rock, formed during the Proterozoic, provides the geological foundation for the site, offering both natural defensibility and stone for construction. The fort represents a significant settlement from Scotland's prehistoric period, when such fortified enclosures served as centres of authority, refuge and community gathering.
The monument sits within the wider pattern of Iron Age settlement in Argyll, a region rich in archaeological remains from this transformative period. Dun an Achaidh would have functioned as a defended residence or communal stronghold, its construction and layout reflecting the social hierarchies and territorial concerns of its inhabitants. The site's position within the distinctive geology of the region connects it to the broader story of human occupation in the western Highlands.
Today, Dun an Achaidh is protected by Historic Environment Scotland under the reference SM2979, recognising its significance as a nationally important archaeological monument. The site remains a valuable record of Iron Age life in Argyllshire, preserving evidence of the defensive and domestic practices of Scotland's pre-Roman inhabitants.
Dun an Achaidh,fort,Acha is a scheduled monument protected by Historic Environment Scotland under reference SM2979. View the official record →
Dun an Achaidh is an Iron Age fort located in Argyllshire, Scotland, occupying a landscape shaped by ancient bedrock of the Lewisian Complex. It is designated a Scheduled Ancient Monument by Historic Environment Scotland under reference SM2979.
Dun an Achaidh,fort,Acha dates from the iron age period, and is classified as a fort,acha. It is one of over 32,000 scheduled monuments protected across the UK.
Dun an Achaidh,fort,Acha is a Scheduled Ancient Monument, legally protected by Historic Environment Scotland — the body responsible for designating and safeguarding heritage sites in Scotland. The official designation reference is SM2979.
Several scheduled monuments lie within 10 km, including Kilbride,enclosure 360m SSW of (1 km), Loch Breachacha,crannog (3.1 km).
This page is just one thread. A full Aubrey report pulls together 14 strands of Dun an Achaidh,fort,Acha's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Dun an Achaidh,fort,Acha stands on Lewisian Complex, bedrock that formed in the Proterozoic. The rock here is metasedimentary rock.