Iron ore is mined by people, transferred into mining carts, connected by a underground mining train, and the train transfers the ore in this elevator thingy and transported to the surface. Most of the shipping ore has to be crushed. Washing is the common practice of iron. They wash it so stuff of iron goes away, so this is why people keep rivers clean. The waste goes away. Transportation vehicles can transport other thing that is useful in the mine. Freight carries supply for lots of workers.
Iron ore mining is complicated and hard, but it's worth it for your state!!!!! Not now though, this was in the 19th century. We use iron to build stuff, like cities, and other stuff. It is also sometimes used for smelting. You need iron to smelt before it is useful!!!
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