Located between the North Shore of Lake Superior and the
Boundary Waters Canoe Area Wilderness, the Arrowhead Region is
Minnesota's most loved recreation area and a place that millions
visit for rejuvenation. This region faces an unprecedented
industrial expansion that is certain to affect the qualities
that draw people here. One of the worst threats from this
expansion is from the mining of sulfide ores, a particularly
harmful type of mining that has not been conducted in Minnesota
before. PolyMet Mining's NorthMet Mine, located between Babbitt
and Hoyt Lakes, is the first of what may become many sulfide
mine proposals. Found HERE Acid Mine Drainage, PA-DEP Sulfide
ores are ores containing heavy metals (such as copper or nickel)
that are bonded to sulfur, forming sulfide minerals. When
exposed to air and moisture, a chemical reaction generates
sulfuric acid that can leach into the surrounding environment
and cause the release of the metals into streams and lakes at
levels that are toxic to fish and other aqu