Knockanvinidee : Artificial Mound

Grid RefO 065 235
Longitude6° 24' 15.14" W
Latitude53° 15' 4.28" N
ITM east480366
ITM north584435
Nearest TownTallaght (4.5 Km)
OS Sheet50
UTM zone29U
UTM x449041
UTM y5761192
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Visit Notes

Friday, 22nd March 2002

This is an easy mound to see but not an easy mound to reach due to barbed wire fences, young pine plantations and a peat bog!

The mound is spectacularly situated on a small promontory on the northern edge of the hill and offers stunning views. It is quite large and irregularly shaped. Height 4m, diameter 15m+.

I am not sure but it seems to lie somewhere close to where the midwinter sun would set when standing at the nearby Ballymaice tomb.

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Sunday, 21st July 2002

We actually wondered over to this today to have a look, being as we were heading for the nearby stone circle. As we approach it from the west it seemed that the mound actually mimicked the shape of Howth in the bay below, but on closer inspection the odd 'landscaping' of the mound would seem to be because of cairn robbing. Excitement over.

A beautiful spot though from which you can see Loughcrew, Tara, the Mournes Slieve Gullion and the Sligo mountains shadowed on the horizon.

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Like this monument

Marked Sites


Follow the R114 out of Dublin and take the third right after Oldbawn. Be careful this is a nasty turn that doubles back on itself on a blind bend. Follow the road and then the track until you reach a small settlement. Park at the entrance to the forest and follow the track for about 300m. Turn right and head through the trees until you reach the fence. You should see the mound from there.

Random Gazetteer

A Selection of Other Artificial Mounds

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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