All of the sites are very important when it comes to megalithic art. There's all sorts of abstract forms, the spiral being quite prominent among other forms.
There's a lot of esoteric interpretation going on about all the sites in Boyne Valley, and I can't really get into all that here - but if you'd like to read up on any of the monuments, just keep in mind that not every "fact" is really a fact, but some of the conclusions and so called evidence could be challenged.
I also decided on beautiful shell/mother of pearl beads as add-ins, since people in the stone age used (a specific kind of) shells as ornaments and jewelry. The brass spirals are not authentic in any way, the people of the neolithic period (new stone age) didn't have brass or gold, but I thought it would look wonderful with the white and green fibres, and I really wanted the spirals since they are so prominent among the megalithic art :-)
But enough talk now - have a look at the yarn! :-)
I spun the yarn from white lambs wool, merino wool of different shades of green, bamboo flakes, and bright green linen. Then there's the beads and spirals, of course, and green sewing thread to carry them all.
157 m / 99 g, about 9-14 WPI.