Waughton Hill, the Eye Stone

An atmospheric shot of the Eye Stone. What does the S signify? Strichen?

We are intrigued by the corpse road over Mormond Hill and are keen to find it. This track was used to carry coffins over Mormond Hill from Strichen to Rathen before there was a burial ground in Strichen. Yvonne, Rufus and Grey Granite set off from Nether Waughton Farm to try to gain access to the hill. The O.S 1:50 000 series Sheet 30, shows a path, which may well be the corpse road, leading straight up the hill from Waughton Farm. We parked at the end of the farm road by a gleaming white road leading to the new wind turbines. Following the main track we soon entered a wooded area and could see an abandoned quarry ahead of us.  The quartz exposed in the quarry explained why the roads to the turbines are so astonishingly white. Looking back there were panoramic views over the Buchan plain to the sea, unfortunately low cloud and the trees (spruce) quickly blocked the view. We were led to another quarry, this time with several huts and what appeared to be compost tumblers. Later it became clear that this was something to do with  a grouse breeding concern. After abortively following a couple of tracks which petered out in the trees we came out above the tree line on open heather clad moor. There were several small troughs, exactly like miniature cattle troughs, scattered in the trees and heather, presumably for the benefit of game birds. Just as we cleared the trees the mist became very thick making it difficult to see ahead. We did pass two large cages each housing dozens of small game bird chicks which became very alarmed when we passed before deciding to retreat down the hill. To the left of the track we saw the large granite stone pictured above. The S on the side facing the track and roughly North, is the only inscription, this seems to be the Eye Stone marked on OS Explorer sheet 427. If this is the corpse road might this be a lych stone?
The expedition will be continued...