Southeast of road R267 at Castleplunkett.
|Classification:||karst lake Turlough|
|Guided tours:||self guided|
Matthew Parkes, Robert Meehan, Sophie Préteseille (2012):
The Geological Heritage of Roscommon. An audit of County Geological Sites in Roscommon.
Geological Survey of Ireland. Unpublished Report.
|As far as we know this information was accurate when it was published (see years in brackets), but may have changed since then.
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Castleplunkett Turlough is a karst lake or turlough, which is water filled in winter and dry in summer. A semi-permanent stream enters from the northeast and flows towards ponds and a swallow hole in peat and rock at the centre of the turlough. The turlough has a very distinctive appearance in summer due to the presence of the black moss Cinclidotus on rocks in the basin floor.