they call it the via ferrata.irst i wanted to see what life was like for these miners working deep within the network of mining tiles before modern machinery transformed the practice of extracting the slate. it's a bit low down here. wow! look at this! it's an absolutely amazing space... i can hear my voice echoing off the rocks. it represents a huge area where they found an awful lot of good rock, and it also represents some 11 miles of tunnels and caverns. paint a picture for me of what it would have been like back in its heyday. when was that? back in its heyday, after the first world war when production was getting going again, and it built up to some 2,000 tonnes of roofing slate produced per year. and that would have been in places like this, lit by early carbide lamps, we would have the dust of the rock in their lungs, and they always have the potential, when you are working the rock, for it to come down onto your head which would have been covered in a cloth cap. back out of the mine, it is time to head up

they call it the via ferrata. see what life was like for these miners working deep within the network of mining tiles before modern machinery transformed the practice of extracting the slate. it's a bit low down here. wow! look at this! it's an absolutely amazing space... i can hear my voice echoing off the rocks. it represents a huge area where they found an off a lot of good rock, and it also represents some 11 miles of tunnels and caverns. i can't imagine how long it would have taken to carve out a space this huge in here. it's a huge amount of time. paint a picture for me of what it would have been like back in its heyday. when was that? back in its heyday, after the first world war when production was getting going again, and it built up to some 2000 tons of roofing slate produced per year. and that would have been in places like this, lit by early carbide lamps, which is the next generation of lamp after using just candlelight, we would have the dust of the rock in their lungs, and they always have the poten

they call it the via ferrata.ractice of extracting the slate. it's a bit low down here. wow! look at this! it's an absolutely amazing space... i can hear my voice echoing off the rocks. it represents a huge area where they found an off a lot of good rock, and it also represents some 11 miles of tunnels and caverns. i can't imagine how long it would have taken to carve out a space this huge in here. paint a picture for me of what it would have been like back in its heyday. when was that? back in its heyday, after the first world war when production was getting going again, and it built up to some 2000 tons of roofing slate produced per year. and that would have been in places like this, lit by early carbide lamps, which is the next generation of lamp after using just candlelight, we would have the dust of the rock in their lungs, and they always have the potential, when you are working the rock, for it to come down onto your head which would have been covered in a cloth cap. back out of the mine, it is time to head