In 1844, government surveyors were exploring rugged, lake-filled terrain near Negaunee, Michigan, when they noticed their compasses swung erratically in certain areas. It did not take long to determine why: ancient Precambrian rock layers in the area were laced with bands of iron ore. The surveyors ...
Overview of ferrous (iron) mining in Wisconsin. Iron mining has more than a 150-year history in Wisconsin. By the mid-1800s there were iron mines operating in Dodge and Sauk counties, and by the turn of the century, iron was being mined in Jackson, Florence, Marinette, Iron and Ashland counties.
Iron Ore Heritage Trail | Michigan Trails | TrailLink.com
The Iron Ore Heritage Trail traverses 47 miles across the Marquette Iron Range in Michigan's beautiful Upper Peninsula. The rail-trail, which was designated as a National Recreation Trail in 2018, shares and celebrates the area's rich mining history with interpretive signage, artwork and connections to museums along the way.