Easy to find down a laneway in this townland, it's a large boulder, over a metre high with the large basin cut into the top of the stone.
The water was rancid in the .35 of a metre diameter .17 of a metre deep bowl. I was taken aback by, on arrival, my companion immersing both hands into the bowl and stirring up the stink. I asked him why he did that and he said because I can. Good enough.