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Alberta officials say industry invested $24 billion in the tar sands from 1996 to 2002, with $70 billion of additional investment announced through 2020
Unique Features of 22 Wing
The underground complex at 22 Wing, affectionately known as "the Hole" is a three-story building underground. Built during the height of the cold war, construction began in August 1959 and was completed four years later after the removal of 300,000 yards (or 765,000 tons) of rock.