The Modern Antiquarian. Stone Circles, Ancient Sites, Neolithic Monuments, Ancient Monuments, Prehistoric Sites, Megalithic MysteriesThe Modern Antiquarian

Maen Llia

Standing Stone / Menhir


It seems to me that Maen Llia is not a natural shape. In the distant past it was almost certainly tooled, and sited, very deliberately.
The reasons for this aren't clear to me , but some of its secrets have emerged.
The stone is oriented north/south. this isn't approximate, it is n/s.
the diamond shaped top is a right angle. The slope that runs uphill from north to south is 38 degrees, which means that at midday at the equinox it is pointing directly at the sun.
The slope that runs downhill from the apex to the south is between 51 and 52 degrees. which means if you look up it to the north on a clear night you are looking directly at the pole star.
this means that the angle of this slope is the same as the latitude of the site, which it is.

Anyone who has a horizontal sundial will be familiar with this shape. To work properly the sundial must be aligned n/s and the slope of its nodus must equal the latitude of its site, otherwise it doesn't accurately measure the hours. Maen Llia might just be the oldest horizontal sundial in the world( if i'm right)

Strangely enough if you stand by a small triangular shaped stone about 40meters south west of maen llia at sunrise on midsummers day( about 10 meters from the road) the shadow cast by the apex of maen llia just touches the stone, and the azimuth of the sun at that moment is spookily between 51 and 52 degrees.
At the southern edge of the stone from ground level is another slope, this one believe it or not is once again the same angle?
I think this angle was important to the people who sited this stone, but i havn't come up with any use for it , other than a very crude calender.
There must be more to it than that. someone with a bit more grey matter than me can maybe take it further, (or discredit what i've come up with) i don't mind which as long as the argument is sound.
One more thing, this angle has been used on other ancient monuments too. Theres one in Egypt that uses it 4 times. there may be others, i dont know.
There are other angles on maen llia too. I can't find anything for them yet.
If anyone can suggest anything else going on here i'd like to know about it.
Please don't take my word for it , these are just my observations and i'm just an amateur at this. Check it out for yourself, theres more to be found here i'm sure.

Good luck
Posted by cerrig
6th June 2009ce

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