by burgingham » Thu Feb 10, 2011 4:54 pm
There are no mines anymore, just underground layers. Those carry veins of ore. Some bigger, some not so big. You might get a couple of hundred or a couple of thousand ores out of a vein, depends on the size. The thing is that you can mine your way through the whole underground layer to find new veins and even if that one is depleted, you can always dig deeper to the next layer.