Greenland has its own Grand Canyon deep under ice, study says

Posted by Washington Post: Juliet Eilperin on August 30th, 2013
Christian Science Monitor: A canyon similar in scale, if not in grandeur, to Arizona's Grand Canyon lies beneath Greenland's ice sheet, according to a new study. Running from deep within the island's interior north to Greenland's northwest coast, the canyon measures at least 470 miles long, six miles across at its widest, and as many as 2,600 feet deep – reaching its widest and deepest points near the coast. The Grand Canyon, by comparison, is 277 miles long, 18 miles wide, and 6,000 feet deep. The portrait points to......

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