Alleged earthwork.


An annotated set of 1:10560 Ordnance Survey maps curated by Manx National Heritage records antiquarian observations of archaeological and landscape features.


PMC Kermode (director of the Manx Museum 1922-32) noted '?Fort' at the north end of Ordnance Survey Field no. 1590, centred at the grid reference provided. His successor W Cubbon (director of the Manx Museum 1932-40) noted 'Magher y Caggey' in the field immediately to the north.


Kermode also refers elsewhere (Manx Antiquities, 1930) to Moore's earlier observation (Surnames and Place Names, 1890) that 'Forty years ago (i.e. 1850) this field contained a complete semi-circular entrenchment but it has since then been almost entirely levelled.' Moore repeats this in his account of an excursion of the IoM Natural History and Antiquarian Society he led in 1900, referring to 'the site of another entrenchment, now levelled, but about fifty years ago a large and perfect semicircle. The field in which it stood was known as Magher-y-Caggey, 'Field of the Battle'.'


No artificial features could be identified by a Royal Commission field inspector in 1955, at which time the field name was not remembered.


Following a field visit in 1978, LS Garrad (Manx Museum 1966-96) however drew attention to a break in slope apparent in OS Field no. 1584 (Cubbon's Magher y Caggey). This would appear to be confirmed by a change in vegetation and a semicircular line of shrubs visible in aerial photography flown in 2015: the feature extends for a distance of c100m on an irregular radius of 40-45m, the centre of which is at SC3732578665.