High Quality Content by WIKIPEDIA articles! The Calumet and Hecla Industrial District is a historic district located in Calumet, Michigan and roughly bounded by Hecla and Torch Lake railroad tracks, Calumet Avenue, Mine and Depot Streets. The district contains structures associated with the copper mines worked by the Calumet and Hecla Mining Company, located along a line above the copper lode, where railroad tracks connected separate mine heads. 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. Данное издание представляет собой компиляцию сведений, находящихся в свободном доступе в среде Интернет в целом, и в информационном сетевом ресурсе "Википедия" в частности. Собранная по частотным запросам указанной тематики, данная компиляция построена по...