Oghil Fort

In a prominent position, close to E end of a ridge, on Inis Mór. This Nat. Mon., known locally as Dún Eochla, is a restored bivallate cashel, defined by an inner oval drystone rampart (N-S 27.3m, E-W 22.7m) and an outer subrectangular one (N-S 76.1m, E-W 50.4m). The inner rampart has two internal terraces with interconnecting steps, and an entrance at NE. The interior contained two houses (GA110-138001- and GA110-138002-) of which no visible surface trace survives; a circular clearance cairn now stands in the centre. The outer rampart, also partly terraced, has an entrance at SSE. (O'Flanagan 1927a, Vol. 3, 230-40; Weir 1980, 260; Westropp 1895, 260) The above description is derived from the published 'Archaeological Inventory of County Galway Vol. I - West Galway'. Compiled by Paul Gosling (Dublin: Stationery Office, 1993). Date of upload: 05 August 2010 The monument was taken into Ownership under the National Monuments Acts 1930 to 2014 - National Monument 43.

Oghil Fort, Eochaill is a likely early-medieval bivallate cashel on Inis Mór, characterised by an inner and outer drystone rampart. Locally known as Dún Eochla, it is associated with the legendary Fianna chief Oechalla, reflecting its historical and folkloric significance in the region.