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<blockquote data-quote="Treebore" data-source="post: 2853430" data-attributes="member: 10177">Rain can be a huge issue. There are gemestone mines I buy from in Africa and around Thailand that have to shut down for part of the year because of the downpours flooding out the mines and surface digs.As for the deepest mines that I know of, those are the diamond mines belonging to Debeers on the South African peninsula. They go down close to tow miles deep and they have to ventilate the heck out of them just to keep the temperature below 110 degrees fehrenheit (sp?) for the miners.The ceilings throughout that mine are about 6 foot high, even the digging machines are short. There are some areas higher up (closer to the surface) where the ceilings are more like 10 to 12 feet high.For some strange reason DeBeers reluctantly shows maps of their tunnels, so I can't give you a good reference. I'll see if I can find something on the Tsavo Mines, plus there is a mine or two in South America I might be able to find something on. I don't really study the mines or their layouts, guess I should since I am a gamer. There has got to be some good books with good maps available.</blockquote>

[QUOTE="Treebore, post: 2853430, member: 10177"] Rain can be a huge issue. There are gemestone mines I buy from in Africa and around Thailand that have to shut down for part of the year because of the downpours flooding out the mines and surface digs. As for the deepest mines that I know of, those are the diamond mines belonging to Debeers on the South African peninsula. They go down close to tow miles deep and they have to ventilate the heck out of them just to keep the temperature below 110 degrees fehrenheit (sp?) for the miners. The ceilings throughout that mine are about 6 foot high, even the digging machines are short. There are some areas higher up (closer to the surface) where the ceilings are more like 10 to 12 feet high. For some strange reason DeBeers reluctantly shows maps of their tunnels, so I can't give you a good reference. I'll see if I can find something on the Tsavo Mines, plus there is a mine or two in South America I might be able to find something on. I don't really study the mines or their layouts, guess I should since I am a gamer. There has got to be some good books with good maps available. [/QUOTE]

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