More information : [Centred SW 4160 3695] Bosigran Castle [ NR ] (Site of) [Extends from SW 4167 3695 to SW 4170 3685] Wall [NR ] [SW 4167 3691] Logan Stone [ NR ] (1) Bosigran Castle is listed as a doubtful site in an article on Cornish Cliff Castles. (2) The headland concerned is ideally situated for defence and consists of a prominent granite outcrop oriented NNW-SSE. On the north, west and south sides there are steep rocky cliffs descending to the sea. Only to the east is there access from the landward side and even here there is protection given by the rocky slopes of the ridge. There is little doubt that an attempt has been made to isolate and fortify the promontory. The southern end of the east side of the ridge is the only vulnerable section, and here for a distance of 100.0m, is a stone wall following the upper edge of the escarpment and running from cliff to cliff. The northern half of this section has the additional protection of steep natural slopes. The landward side of the wall is of crude, dry stone, construction up to 2.0m high and retains on the west a bank of granite rubble 4.0m. wide and up to 1.2m. high. The southern part of the retaining wall appears to be a modern reconstruction. The only sign of an entrance is to the south where there is a small gap in the rubble bank, although the retaining wall is unbroken. A scatter of loose stones on the slopes below the wall indicates that parts of the wall have fallen and that it may have once been considerably higher. The wall, although now not very strong, is ideally situated for defence and commands a fine view of the level ground on the landward side making any unobserved approach practically impossible. There are no traces of any internal occupation, the only features of interest being a logan stone and several fine rock basins. It is concluded that this is a promontory fort although the nature of the defences may indicate a use a an occasional place of refuge rather than a permanent habitation site. A 25" survey has been made. (3) A section of walling on the east side of the headland, linking the natural outcrops, was revealed when heavy vegetation was burnt off in 1958. The site is no longer doubtful (as recorded by Dr Cotton (2)). (4) As described in survey of 27 1 61. It is fairly certain that the walling represents some form of defence and the vertical face of drystone work which faces inland is, as suggested by Geary, apparently much rebuilt on the original pattern. There is no accompanying ditch. The 4.0m spread of small stones backing the wall have evidently been collected from within the enclosed area which is strewn with boulders and large patches of barren rock. There may have been considerable erosion of top soil but there are no signs of habitation and any permanent settlement must have been on a minor scale. The area is still known locally as 'Bosigran Castle.' (5) Bosigran Castle is an Iron Age cliff-castle of simple type, defended by a thick stone wall 120m long and up to 1.6m in height. It has a central entrance, now blocked, and no external ditch. No dwelling sites have been found within. (6) Bosigran Castle, a refuge rather than a defended settlement, is now in the care of the National Trust. (7-9)
SW 416 370. Bosigran Castle. Listed in gazetteer [apparently erroneously] as a doubtful multivallate hillfort covering ?0.8ha. (10) |