"Caisleán Diarmada, [Castledermot] the foundation
of an old castle to be seen under water on the eastern side of Fionn
Loch. The ploughland is called Tuath Fionn Locha very near
Ros Ruadh."
From 
Letters
on the Antiquities of County Clare, 1835 by Eugene O’Curry
Description in A Survey
of Monuments of Archaeological and Historical Interest in the Barony
of Bunratty Lower, Co. Clare by W.G. Ryan
Search the online photographic collection for images of Castledermot
On 1842 Ordnance Survey Map (using GenMaps)
On Bing maps satellite view (using GenMaps)
On Bing maps satellite view with OS Map overlay showing all monuments and enclosures (using GenMaps)
On 1842 Ordnance Survey Map (via MapBrowser)
