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National Register of Historic Places listings in Marquette County, Michigan - Wikipedia
Champion Mine Michigan | Champion Copper Mine
Copper mining in Michigan - Wikipedia
How Michigan's worst mining disaster left 51 dead, most entombed underground - mlive.com
Humboldt Mill Mep Buildout | Champion, Michigan - GCI
Michigan Mining Tour
The Champion Mine - Lost In Michigan
Nov. 3, 1926: Hour-by-hour look at Michigan's worst mining disaster - mlive.com
Michigan Mining Tour
Champion Mine Michigan | Champion Copper Mine
MICHIGAN SHADOW TOWN: Champion, in Marquette County
Humboldt Mill Mep Buildout | Champion, Michigan - GCI
Eagle Mine | Champion MI
Painesdale Mine added to registry of historic sites
Amazon.com: Flotation treatment of experimental iron ore tailing from Champion mine, Marquette Range, Michigan: Sorensen, Roy T.: Books
Painesdale Mine & Shaft
The Rock Cut in the Upper Peninsula - Lost In Michigan
Champion Mining Company - Wikipedia
Copper Mine Tours | Keweenaw Peninsula
Champion Mining Company - Wikipedia
Painesdale Mine recognized as historic site
Specular Hematite at the Beacon Mine in Champion Michigan - The Snob Blog
