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National Geographic : 1968 Jul
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UUALn.ItUMLbt.U)NAIIUNALULUOGRAHI(C SUCIET Mountaintop sinks below sister peaks dur ing open-pit mining for asbestos on 6,600 foot Mount McDame in British Columbia. The Cassiar Asbestos Corporation Ltd. scoops out 3,000 tons of ore a day and proc esses it into 280 tons of silky fibers used in heat-resistant materials. Canada supplies about 40 percent of the world's asbestos. April sunset on the Arctic's rim glows beyond the DEW Line (Distant Early Warn ing) station at Tuktoyaktuk. Crossing har bor ice where the Mackenzie River meets the Arctic Ocean, an Eskimo sledge driver heads for home at 10:30 p.m. Construction of the joint U. S.-Canadian radar chain in the mid-50's spurred the North's economy, putting Eskimos to work building wharves, offices, and airstrips. In summer, river barges off-load freight at "Tuk" for ships plying the Arctic coast.
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