On a recent visit to this site I notice that the sign is now missing, it used to read something to the effect of 'Scheduled ancient monument' There was probably a bit more than that but I don't remember. There has been a bit of work in the area recently - cutting back rhodedendrons by the burial chamber and some work on a nearby footpath. Don't know if this is anything to be concerned about?
Something is not right. This message is just to keep things from messing up down the road