Hallo Andy!
My name is Gunnar and i mail from Austria.
I have just red you information about the Standing Stones in Cornwall.
We have also a stone like your "Men Gurta" here.
We call it Mount Gurtis (http://www.gurtis.at)
and below there ist the village Gurtis.
You must know that Vorarlberg in Austria was a celtic area too.
But the romans called the celtics here the "kurtis"
In Bern, Switzerland, which is not very far from here, there is also a mountain called "The Gurten"
On top of the mountan there is a rock with a hole like your "man-an-tol"
(http://www.dillum.ch/html/tannstygli_krauchthal.htm) You must pull down to see the foto!
We also have a litte stonehenge here, but it is not so famous like yours.
The village is called "Bürser Berg". In english it means "the farmers mountain".
http://www.buerserberg.at
Our scientist assume that there must bi another 2000 stones below the earth.
Your Columban is well know here too because he evangelized here together with Gallus.
A village here is called "St. Gallenkirch"
http://www2.riskommunal.at/stgallenkirch/
We also know your "silver ball" but we do not hurle it.
We know it as crystall balll filled with water, like a lens.
Our celtics used it to send light-messages
Today you can find the ball on every church roof in Vorarlberg.
We know the syllable "wall" here too. Qur region is called The Walgau.
Have a nice time!
Gunnar
gerstgrasser.at>
Something is not right. This message is just to keep things from messing up down the road