Hi Gladman

Not been up on the Beacon for a good while...as you say there is nothing marked on maps and I have just had a quick look through 'Stone Worlds', the book written about the archaeological study of the Leskernick area and all they mention is a few orthostats in the Beacon area used as grounders in hut circles and walls.

Sorry can not be of more help...will try to get up there and have a look myself when the weather improves....do you have a grid ref?

Mr H