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Descent 305 - Pre-order is open!!
Our August/September issue has a publication date of 2 August, and it is a special summer bumper issue full of stories of exploration and wonder from the underground world.
I noticed she was polite enough not to question the mysterious bulge in the guy's cheek throughout the second half of the video - and the fact he seems unable to stop talking. Coffee just doesn't cut it for underground work
Potosi does indeed have a fantastic history of silver production.
A mine up in the hills some miles east of Tan y Bwlch, beyond Blaen Ceulan, usually called Esgair Hir was renamed at one time the "Welsh Potosi" to suggest it was as rich in silver (it wasn't!).