[visited 30/6/12] I tried to find this before, just following Stu's instructions on here and failed, giving up after an hour or so. This time I was better armed with an 8 figure grid ref and a GPS which got me to within 10 metres of the stone, a quick search of the vicinity then proving fruitful! As it turns out I got witin 50 metres last time and decided against trying yet another last group of trees. If I had persisted I probably would have found it last time. Stu's instructions are basically sound, I'd clarify them by adding what I thought first time was the wide peat gulley wasn't, the gulley we want being closer to Birchen Edge just before the land starts to climb again.
The stone isn't very imoressive but worth a look if you are up here. It looks like it was perhaps part of a larger piece and has been broken off. The carvings are visible but quite weather worn.
Access is possible from a few directions, the North-East being perhaps most accessible though I haven't approached from that direction.
On a small gritstone block directly under a Silver Birch is a worn carving consisting of 2 cups each with a worn outer ring. The rings seem to overlap slightly.
It's a bit tricky to find......from the 'standing stone' head due east for 0.25miles, go through the trees and over the ruined drystone wall. You should end up in a wide peat gulley.....the carving is on the western side of this gulley.