If a historic map for an old, discovered mine isn’t available, how do they map it? I’m assuming it’s too dangerous to go down inside something that old (1800’s) so do they use robots to go look? Or do they use something more advanced like GPR (ground penetrating radar?)
… or do they just say huh, neat, an old mine! And never go in?
In: Earth Science
You’ve asked this question in a way that sounds not like a hypothetical (“what would one do if …”) but like it’s already happened several times, and you want to know how “they” did it. Has this happened, even once?
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