Greenland's mineral riches are an increasing focus of the U.S. and, as the vice president recently warned, America's rivals.

It's certainly not a small island: It's about three times the size of Texas. But on most maps, Greenland looks almost as big ...

Tungsten is also found in central east and northeast Greenland with assessed deposits in the south and west. On some map projections, which enlarge landmasses near the poles, Greenland appears ...