'Lettergorman N' : Stone Circle

Grid RefW 267 473
Longitude9° 3' 35.01" W
Latitude51° 40' 24.61" N
ITM east480366
ITM north584435
Nearest TownDunmanway (6.4 Km)
OS Sheets86, 89
UTM zone29U
UTM x449041
UTM y5761192
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Visit Notes

Sunday, 20th April 2003

A rare four-poster Irish stone circle - and a genuine one too I would say, but there are only three of the huge stones now standing. The tallest of these is over 2.5m tall, the shortest is 2m tall.

75m off to the west is an outlier which could actually be the fourth stone that has been moved for use as a scratching post for cattle. If placed in the vacant south-east position the plane formed by the stones would be an even diagonal slope.

The location is hard to assess because it it now crammed into the corner of a field and the high hedges make it difficult to take in the view properly, but it is located on a broad plateau on the north west side of a low rolling hill with extensive views.

The area described by the 'circle' would be 6.5m x 6m, quite a big area, with the long axis aligned NW to SE.

Aubury Burl rates this site very highly, including it in his top 50 stone circles to visit. I am not sure if this is because it is a geniune four-poster in a country where they are scarce or because of its elegant form. With one stone missing it is not for is perfection.

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About Coordinates Displayed

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.

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