Poundcarton : Stone Pair

CountyMayo
Grid RefL 903 552
GPSL 90337 55173 (5m)
Longitude9° 39' 14.99" W
Latitude53° 32' 6.15" N
ITM east480366
ITM north584435
Nearest TownClonbur (19.2 Km)
OS Sheet37
UTM zone29U
UTM x449041
UTM y5761192
Hide map  (N.B. Google Maps & GPS readings are slightly out of sync - position is approximate)
Show inline map (by Google Maps)

Visit Notes

Sunday, 19th August 2007

We parked early and walked up the valley towards the footbridge that would take us across to the stones. As we approached we could see a single stone gleaming in the sunlight (yes, we really had sunshine!) We knew where we were heading!

We crossed the river and walked up the slope towards the stone. It wasn't until we reached the top of the small knoll where the stone stood that we could see why the OS map says Standing Stones. Hiding behind the 1.6m tall stone we could see all the time there is a second stone that is just 80cm tall.

Both of the stones are solid quartz and are aligned roughly west. It's hard to say what they align to, as opposite there are just the steep slopes of the other side of the valley.

Like this monument

Marked Sites

A Selection of Other Stone Pairs

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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