Monument record MHG45429 - Possible Dun, Coroghan Mor, Canna

NG20NE 4 2796 0552.

(NG 2796 0552) A 'castle' built on a stack (Coroghon Mor) rising 70-80ft sheer above the sea on three sides and linked to the land by a narrow neck, where ascent of the stack is possible by a track which leads upwards to a roughly rectangular forework of at least two storeys.
The crag was mentioned as a 'refuge' in 1577-95, but no building was referred to, so it may be assumed that the building is post-16th century (W G Collingwood 1906). Appears to be a gatehouse added to a dun (OS 6"map, annotated A L F Rivet 20 June 1961).
D Monro 1884; W Collingwood 1906; RCAHMS 1928. <1>-<3>

A small stronghold rather than a castle, built against the N-facing crag of Coroghon Mor. The building is an entity in itself and there is no trace of a dun as suggested by Rivet, nor of any other work.
With walls generally 0.7m thick, the building is constructed of random masonry and utilises the rock face as part of its S and E walls. The high curving N wall is pierced near its E end by a doorway 0.6m wide at the head of a steep path up the crag.
The main room occupies the W half of the castle and measures internally 3.0m N-S by 2.0m with a doorway 0.6m wide towards the S end of its E wall. Under it is a cellar of similar dimensions.
The 'basin' shown on Collingwood's plan is an apparently rock-cut hollow 3.5m x 2.0m by 0.3m deep, of uncertain purpose. The 'pit' is a natural hollow.
Campbell (Mr J L Campbell, Canna House) states that undecorated hand-made pottery sherds in his possession were found at the foot of the crag below the castle.
Visited by OS (A A) 1 June 1972.

On the top of a rock stack, reached by a very steep path. Rubbly remains of a roughly rectangular small tower, probably of the 17th century.
J Gifford 1992. <4>

It is probable that the site was used historically as a fort, well before the construction of the stronghold, despite there being no trace of an earlier structure. <5>