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Copper

September 13, 2017
Joel Sipress (left) and Justin Perpich
Mining skirmish reveals divisions in DFL; Sipress apologizes for foul language
September 13, 2017 - 6:07pm
August 15, 2017
A PolyMet Mining official explains in December 2013 how the company will use rod mills, one of which is at right, to crush metal-bearing rock from 1/2-sized pieces to small pieces of gravel as part of the process of extracting copper, nickel and other metals from the planned mine.  (file / News Tribune)
Group reiterates call for hearing on proposed PolyMet mine
August 15, 2017 - 7:09pm
August 9, 2017
Heads up, Moscow mule lovers: That copper mug could be poisoning you
August 9, 2017 - 3:37pm
July 20, 2017
Copper critics' study says mine could hurt economy
July 20, 2017 - 6:17pm
May 9, 2017
DNR ready to offer 302 square miles for mineral exploration
May 9, 2017 - 9:11am
February 23, 2017
New business group forms to oppose copper mining
February 23, 2017 - 1:31pm
January 9, 2017
Kennecott asks to expand copper search
January 9, 2017 - 3:16pm
October 27, 2009
Ely mineral deposit larger than expected
October 27, 2009 - 12:00am
February 19, 2009
Mining advocates dislike limits in copper-mining bill
February 19, 2009 - 12:00am
October 10, 2008
State questions PolyMet on lack of underground mining option in study
October 10, 2008 - 12:00am
PolyMet EIS delayed again
October 10, 2008 - 12:00am