Rath Faolain [Rathfolan] castle is a ruined square tower situated
on a steep crag near Dromoland about five miles north-west of Six Mile
Bridge.
From 
Letters
on the Antiquities of County Clare, 1835 by Eugene O’Curry
Reference in
Ordnance Survey
Letters by J. O’Donovan and E. Curry, 1839
Description in The
Journal of Thomas Dineley, 1681
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 [Rathfolan] Castle
On 1842 Ordnance Survey Map (using GenMaps)
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On Bing maps satellite view with OS Map overlay showing all monuments and enclosures (using GenMaps)
On 1842 Ordnance Survey Map (via MapBrowser)
