2008 Mining History Association Field Trip
Hill Annex Mine State Park, Calumet, Minnesota
June 12, 2008
Host: Staff of the Hill Annex Mine State Park
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Panorama of the Hill Annex Mine, Calumet, MN. It mine operated from 1913 to 1988 when it was closed by Jones and Laughlin Steel Corporation. The mine, now flooded, was hundreds of feet deep. The plant area (right) included railroad shops, crushing and screening facilities, and a heavy media-separation plant for processing lean ores. The mine produced 63 million tons of iron ore. The mine is designated as a National Historic Site and is part of the Minnesota State Park System.
View from the pontoon boat of the pit conveyor (now partially submerged) from the Hill Annex Mine to the beneficiation plant on the hill.
Saturated glacial soils in the overburden provide a waterfall of ground water that flows into the pit.
Iron ore exposed in the pit walls can be easily seen from the pontoon boat.
Back on dry land, the MHAers learn more about the geology of the Hill Annex and the west end of the Mesabi Range.
Electric loading shovel and haulage truck on display.
Duane Smith and Mark Langenfeld “kicking the tires.”
MHAers climb aboard for a shovel inspection.
Blast hole drill rig used in the Hill Annex pit.