For almost 100 years, the Soudan mine in Tower, Minn., yielded the purest iron ore in the country. Now University researchers will mine knowledge that could put them on the forefront of physics ...
The pitch-dark ride to the âÄú27th floorâÄù (actually 689 feet below sea level) of the Soudan Mine lasts only three ... but that doesnâÄôt mean the once-booming iron mine, around which the town of ...
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