Carreg Pumsaint

I visited the gold mines two years ago on what I remember was a nice sunny day. (N.T. site) What I thought was a small valley was in fact the quarried side of the hill. An interesting place to visit in a very pretty valley.
Whilst I was there I saw a large squarish block of stone which I just assumed had been used for some reason to do with the mining.
It appears that I was actually looking at Carreg Pumsaint? If you visit the mine the stone is easy enough to spot.
I tried to buy a visitor’s guide (as I always do as a keepsake) but I was told they didn’t do any!
Luckily a member of staff gave me a battered old photo copied booklet one of them had made themselves! (Thank you to that person)