Wow! What a wonderfully Christianised pagan place! This well goes beyond most that you come across in oozing with antiquity. First of all there is the well itself, then you have the healing well (recommended for warts, stomachs and toothache - although I don't fancy drinking water that people have been dipping warty appendages into - that takes real faith!) and thirdly there is a hollow in a rock that is called a 'Chair For Ailments Of The Back'.
The wells bubble out through the bedrock and the 'chair' is a natural, but odd, weathering feature - the scene here is one of extremely strange quirks of nature.
This is an explanation of (and a bit of a disclaimer for) the coordinates I provide.
Where a GPS figure is given this is the master for all other coordinates. According to my Garmin these are quite accurate.
Where there is no GPS figure the 6 figure grid reference is master for the others. This may not be very accurate as it could have come from the OS maps and could have been read by eye. Consequently, all other cordinates are going to have inaccuracies.
The calculation of Longitude and Latitude uses an algorithm that is not 100% accurate. The long/lat figures are used as a basis for calculating the UTM & ITM coordinates. Consequently, UTM & ITM coordinates are slightly out.
UTM is a global coordinate system - Universal Transverse Mercator - that is at the core of the GPS system.
ITM is the new coordinate system - Irish Transverse Mercator - that is more accurate and more GPS friendly than the Irish Grid Reference system. This will be used on the next generation of Irish OS maps.