Ironton Sintering Plant Complex - Credit: Wikimedia Commons
Ironton Sintering Plant Complex - Credit: Wikimedia Commons
Ironton Sintering Plant Complex is a group of buildings north of Crosby, Minnesota, United States, listed on the National Register of Historic Places. The plant was built in 1924 by the Hanna Mining Company to sintering iron ore mined in the Cuyuna Range. The mining industry, after 1900, was seeking to exploit lower-grade iron deposits to meet the increasing demand of the iron and steel industry. To bring the ore to customers' specifications, the mines sought to "beneficiate" the ore through sintering, crushing, and washing. The sintering process was unique to the Cuyuna Range and made it possible to economically support mining. Read more on Wikipedia
Source: en.wikipedia.org