In reply to Stu Tyrrell:
What is the accepted protocol (if any) for dealing with a hazard like this?
a) Continue to post warnings like this and do nothing?
b) Close the area below to walkers and climbers whilst it's dealt with by the controlled use of explosives? I can see that the downside of such action is that it might destabilise the hillside more, and you have little control over where the boulder or bits of it might finish up.
Just curious? I remember Hounds Head Buttress at Tremadog being dynamited, but I think that was because of concerns about it collapsing onto the road below.