The Montreal Mining Company, located in the western section of the Gogebic iron range in northeastern Wisconsin, was founded in 1885 in Montreal, Wisconsin. With the decline of the lumber industry at the turn of the century, particularly the close of the Montreal lumber mill in 1904, iron ore production became the focus of the economy in the area. As a subsidiary of Oglebay, Norton & Company of Cleveland, Ohio, the Montreal Mining Company was for many years the largest underground mine producing iron ore in the United States. Curtailed production forced the mines to close on August 10, 1962.
