Minnesota taconite operations

The state's second wave of iron mining began in the 1950s, using new technology to process an ore called taconite into pellets.

December 2, 2014 at 1:42AM
(Mark Boswell/The Minnesota Star Tribune)
(Mark Boswell/The Minnesota Star Tribune)
about the writer

about the writer

Mark Boswell

Deputy News Graphics Director

Mark Boswell is Deputy News Graphics Director at the Minnesota Star Tribune and has over 30 years experience as a visual journalist, illustrator and writer.

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