 The Historic District is completely contained in the Calumet Historic District (a National Historic Landmark District) and the Keweenaw National Historical Park.It was designated a Michigan State Historic Site in 1973 and was listed on the National Register of Historic Places in 1974.The copper lode underneath the Calumet and Hecla Industrial District was discovered in 1858 by Edwin J. Hulbert, who immediately garnered investors, bought the property, and established the Hulbert Mining Company.