Onagh Portal also known as Glaskenny

Onagh / Glaskenny Portal Tomb near Enniskerry
Wanfried-Dublin, CC BY-SA 4.0 , via Wikimedia Commons

The Onagh Portal Tomb is located in the townland of Onagh, almost on the boarder of the adjoining townland of Glaskenny west of Enniskerry in the north of the half barony of Rathdown.

This dolmen is also known as the Glaskenny dolmen, is in a collapsed state and the two portal stones measure about 3 metres by 1.5 metres in size. The capstone is approximately 3.66 metres by 3 metres by 61 centimetres. It is was locally known as Donncladh dearg which according to the noted historian Liam Price is a corruption of Dourna darrig which means “the fist of the Red Giant”.



Turner, Kathleen If you seek Monuments, a guide to the antiquities of the Barony of Rathdown, Rathmichael Historical Society, Rathmichael

Scott, Canon George Digby The Stones of Bray, Cualann Publications, Bray, 1984

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