Central Mine / Houghton Township Hall / Michigan Technological University / / /
IndustryTerm
Pre-historic and historic mining / /
NaturalFeature
Keweenaw Peninsula / Eagle River / /
Organization
Michigan Technological University / USDA Natural Resources Conservation Service / Copper Country Chapter / Keweenaw County Road Commission / Michigan Department of Environmental Quality / Houghton Township Board of Commissioners / Keweenaw County Historical Society / Keweenaw County Board of Commissioners / / /