6o ALASKA GEOLOGY At the time of my visit active mining work was chiefly confined to the no-foot level, much stoping being done there, and all ore taken from the open pit above being run down to that level in chutes and hoisted from there through the main shaft. The 220-foot level was also well… … and cross-cuts, and stoping had already been begun on a limited scale. Below this, levels cross-cutting the deposit had been run out at 330 and at 440 feet, and were open to inspection, but no drifting had yet been done from them. About 2,000 tons of ore a day were being lifted from this mine…
Natural history -- Alaska · Scientific expeditions · Alaska
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