I can guide you in, if you have a cellphone and I know the number (assuming I'm there and it's not misty). I have the equipment for the mine adit but my time is almost entirely occupied with a difficult wall.

This barrow is entirely unexplored ( http://www.themodernantiquarian.com/post/40275 ) and not far from a solid track. There must be (a) standing stones fallen over near it (b) associated Rock Art and (c) probably a blocked off entrance. It's oriented east-west ish, with the higher side to the east. I've not looked on the northeast for a forecourt - I've not been round that side. Do you think those present pictures could be improved ?