Underground mines don't drastically change the landscape at the surface; typically, these will consist of several shafts for miners, material, and ventilation, and perhaps a tunnel to haul out the ore.

Perhaps the most prominent feature of underground mines is the headframe: this structure sits atop the shaft, and allows miners and materials to enter and exit the mine. Above is the headframe for the No. 9 shaft at BHP's Superior mine.


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Copper mining in Arizona