Big chill.

• Position: Barrick Gold's gold-mining project in Argentina, Chile border - Art

BIG CHILL With the discovery of the New World, tales of a resplendent, gilded kingdom, El Dorado, spurred legions of adventurers to set sail. In their sometimes suicidal pursuit of gold, however, Spain's otherwise tough conquistadors would have never considered smashing through a glacier to get to the precious metal. That's exactly what Canada's Barrick Gold intends to do, nearly 4,800 meters above sea level on the border of Argentina and Chile. Called Pascua Lama, the company's USS 1.50 billion gold mine is a colossal engineering task. To...