Just watched the video again... How could they have known 150 years ago that land set aside to provide income for Minnesota schools could be so valuable? They are called "School Trust Lands," and it just so happens that many of them are above vast deposits of copper and nickel. Today, mining companies are getting ready to exploit these hidden riches and our schools could reap billions of dollars in royalties. Jason Davis visited two of the companies racing to get started on mining the copper, nickel, platinum and even gold locked into the ancient rocks in the northeast of the state. In Hibbing, Davis explored an amazing depository of drill core samples that reveal the minerals that could lead to a massive new industry around the iron range. http://kstp.com/article/stories/S2832720.shtml?cat=7