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This brings back memory's. When I was growing up I could see three of these monstrous drag lines working day and night off in the distance at the Navajo mine in New Mexico, I was living across the border in Colorado to give you an idea of their size. They each had two feet and moved in that same way, dragging a huge ring across the ground. They each had a boom towering in the air that was more than a football field in length.
I think that's all shut down now.
I think that's all shut down now.