lio112
Member
The mine was started in 1800s and finished in 1960. They mined it by digging into the rock and then letting the (substance) collapse under it's own weight. All the surplus or useless rock was then packed into walls called "packwalls". The (substance) was extracted to the surfice. There is still alot down there if you want to explour, altho it is a good idea to know what the dangers are first. Me and James went with an experienced Mine explorer as they are dangerous places.