PAN across mines at Cobalt showing shafts and miners houses. Shots of miners entering mine, going down to work level in elevator, drilling underground, miner lighting fuses, aftermath of blast and miners scaling to remove any danger of rockfall. CUs of rich veins of ore, of drill biting into veins. Shots of heavy timber used to hold up walls of mine, of ore being loaded into ore car, being wheeled out of shaft by underground electric train. LS of typical northern mining town with airlift carriers in foreground. Shot of ore being weighed and put through sizing screens. CS of giant nugget. Sequence in mill showing how ore is crushed, poured, flowing to concentrating tables. Shots of slime vats, silver being separated from ore and 50 pound ingots of solid silver.