Ancient Monuments

History on the Ground

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Dun Gallain,fort,Colonsay

A Scheduled Monument in Kintyre and the Islands, Argyll and Bute

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Latitude: 56.0575 / 56°3'26"N

Longitude: -6.2603 / 6°15'37"W

OS Eastings: 134871

OS Northings: 693143

OS Grid: NR348931

Mapcode National: GBR BDXP.Z64

Mapcode Global: WGYFN.T03L

Entry Name: Dun Gallain,fort,Colonsay

Scheduled Date: 4 May 1994

Source: Historic Environment Scotland

Source ID: SM5969

Schedule Class: Cultural

Category: Prehistoric domestic and defensive: fort (includes hill and promontory fort)

Location: Colonsay and Oronsay

County: Argyll and Bute

Electoral Ward: Kintyre and the Islands

Traditional County: Argyllshire


The monument comprises a fort which is situated at the W end of a rocky promontory about 1.8km W of Machrins.

The summit is defined by an oval wall, enclosing an area about 30m by 20m with an outer wall on the E and S sides. The main wall is best preserved on the E and S sides, where it is about 3m thick and 0.7m high in five courses; at one point on the NE a stretch of medial face is visible for a short distance S of the entrance, which faces NE. There is a modern marker cairn on the highest point of the interior. The outer wall runs along the crest of a rocky ridge on the E side and along the lower flanks of the summit on the SE, where long stretches of outer face are visible. There is a gap in the wall debris on the NE in line with the entrance through the main wall, but a single large outer facing stone suggests that the outwork continued to the cliff edge.

The area to be scheduled is oval on plan and measures 65m from SW to NE by 50m transversely, to include the fort and an area around in which associated remains are likely to survive, as marked in red on the attached map extract.

Source: Historic Environment Scotland

Statement of Scheduling

The monument is of national importance because it is a well preserved fort which has the potential to provide information about later prehistoric architecture and about the economy, farming practice, lifestyle and social structure of the people who lived in it.

Source: Historic Environment Scotland



RCAHMS records the monument as NR39SW 1.

Source: Historic Environment Scotland

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