The Knockroe Ringstone [OS Map Sheet 68 Grid Ref S480827 52.5776, -6.7815] is one field away from Shannon's Lane, the easiest route to the Mt Leinster uplands from the Scullogue Gap to the South. Part of this stone (the bottom left in the picture above) was revealed when, in November 2007, the existing 2m gateway widened to 3.8m. The original artwork was carried out 4000 years ago (in Newgrange times) when a flat-topped 5 ton granite boulder was incised with a cup-and-ring-with-chevrons design by a Neolithic artist. It is useful to view the Ringstone in the context of other rock-art in the locality. This has been documented by Chris Corlett who wrote Inscribing the landscape - the rock art of south Leinster, the definitive book on the subject. The cover of that book features the work of The Rathgeran Master a truly wonderful incised stone, 4 km due West, on the NNW side of a hill at Rathgeran, just outside Ballymurphy.
In August 2010, under supervision of Chris Corlett, both sides of the gate-way were taken apart to get a proper look at the incised stones. From the disassembled 3-D jigsaw, it was clear that four of them could be reassembled into a single piece with a natural outside border, giving confidence that all the relevant bits of the incised face had been recovered. Three, apparently undecorated, top bits of the original gateway could also be reassembled and probably represent the rounded ‘back’ of the original boulder. After discussion over lunch (never good to hurry these things), it was agreed to reassemble the Ringstone a) vertically b) to form the end of the wider uphill wall. The back-of-the-rock fragments make up the downhill side of the gateway. In other words, now both its Neolithic and 19thC functions are fulfilled. It would be nice to say that you can’t see the join, but these are as clearly visible as the dashed line in the middle of a road. These are the marks where [oak or steel] wedges were driven into the stone to split it.
You are welcome to visit. There are sheep so please shut any gates you find shut and leave open those you find open. Dogs, even leashed, will disturb the sheep so please leave them at home.