Out, so glad i dumped this for other Cobalt plays I just dont see it! how do you dig out an old mine? Them old shafts and tunnels were no doubt designed to be safe and stable. Now you are going start following visible cobalt? I dont see it , open pit? start digging and the whole thing collapses in? Think you guys need an answer on how. Any body out there seen an old mine reopen and chase a different metal? Good Luck dyodd