Canada: Imperial Power

In the frigid Labrador wilderness, the Churchill River plunges over a cliff higher by 79 feet than Niagara Falls, rushes down a series of lesser cataracts on its 200-mile course to the Atlantic Ocean. Last week, after 14 years of maneuvering, two provinces of Canada agreed to harness that mighty resource with the largest hydroelectric project ever built in North America.

Thanks to fortunate topography, the river will be diverted through a series of small lakes and dikes to a point 22 miles downstream, then dumped 1,040 ft. into a power station buried...

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