In reply to wynaptomos:
It may just be a good place to film, but I was trying to think what survival tools I could make if I was stranded in an area with a slate quarry/ resource..
As it happens there is slate either side of Loch Lomond, near where I live, and there are loads of piles of slate lying around. But I still cannot think what use I could make of it as a survival aid, (apart from shelter which is too obvious. )
Can you perhaps fashion spear heads from slate, or make slate boomerangs?