"The new-found abundance of metal has forced archeologists to reevaluate their views of ancient Arctic culture. Most of the reassessment reflects the effort to answer one simple question: How did Arctic people get the metal?
Sources of copper and iron are exceptionally rare in the Arctic. Copper seems to have come from two locations. Most of the iron came from Cape York, Greenland, where a large, almost pure iron meteorite broke into fragments while descending through the atmosphere thousands of years ago. "