By Ann Wessel, St. Cloud Times, July 6, 2015
Mining opened the earth here, producing 64 million tons of iron ore, leaving a 200-foot-tall pile of reddish rock and a 300-foot-deep lake, and creating a magnet for history-lovers and fossil-seekers.
Hill Annex Mine State Park lies beyond a locked gate. Exploration is by organized tour only, and those tours run only during the summer.
“We have a gate, and we don’t let people roam around unattended. That piques curiosity,” said Jordan Schaefer, park manager for the past four months.
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