Derrymeel Fort, Doogary, Co. Mayo

Co. Mayo |

Ringforts

Derrymeel Fort, Doogary, Co. Mayo

A low ridge running north-west to south-east across the Mayo countryside, with wet pasture falling away on the northern side and rush-grown ground below, turns out to be precisely the kind of elevated spine that early medieval builders sought out.

The rath that sits on top of it is unusually well defended for a site of this type, ringed not by one but two fosses, each backed by an earthen bank, surrounding a raised circular platform roughly thirty-four metres across. A rath is an enclosed farmstead of the early medieval period, typically protected by a single bank and ditch, so the double-fosse arrangement here suggests either a household of some status or a location that demanded extra caution. The views to the north and south-east are extensive, and the ground drops sharply enough to make the site conspicuous from a distance, which may partly explain why it earned a name on the Ordnance Survey six-inch maps of both 1838 and 1919.

The structure itself has survived in reasonable condition, though not without damage. The innermost fosse is flat-based and clearly defined on much of its circuit, and the platform scarp still stands nearly three metres high at the north-east. The outermost bank, nearly seven metres wide in places, survives well on the western half of the rath but has been levelled to the east, where part of it has been absorbed into a later field fence. Quarrying has disturbed the northern arc, smoothing the fosse and bank there into a broad terrace rather than a sharp sequence of cuts and rises. The original entrance, on the eastern side, was a ramp-like causeway across both fosses with corresponding gaps in the outer banks, following the natural line of the ridge; a field fence now crosses that causeway and blocks it. Inside the enclosure, an L-shaped depression near the north-east scarp is thought to be a collapsed souterrain, an underground stone-lined passage of the kind often associated with early medieval ringforts, used variously for storage, refuge, or both. About thirty metres to the south-east, on the same ridge, a cairn sits in quiet company with the fort, a pairing that adds another layer of interest to a landscape that has been shaped by human activity across a very long span of time.

The outer fosse gives away its partial survival in the subtlest of ways: where it has almost disappeared on the north-eastern arc, a growth of yellow iris marks the line of the old ditch, flowering along what was once deliberately cut ground. It is the sort of detail that only makes sense once you know what to look for.

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Pete F
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