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The Hull–Rust–Mahoning Open Pit Iron Mine in Hibbing, Minnesota, United States, is the largest operating open-pit iron mine in Minnesota. The pit stretches more than three miles (5 km) long, two miles (3 km) wide, and 535 feet (163 m) deep. [2] It was established in 1895 and was one of the world's first mechanized open-pit mines. [3]
Iron ore is currently mined only from open pits, although some mines operated underground early on. [10] Much of the softer ore was formed close to the surface, allowing mining operations to be conducted via open pit mines. The world's largest open pit iron ore mine is the Hull–Rust–Mahoning Open Pit Iron Mine in Hibbing. In the early years ...
The largest mine in the range, Soudan, was closed in 1962, and the last mine in the Ely area closed in 1964. [2] Despite the effort needed for the deep mining Soudan mine, the ore obtained was worth the effort; the quality of the hematite ore was so pure that two pieces could be welded. [1]
Hibbing is a city in Saint Louis County, Minnesota, United States.The population was 16,214 at the 2020 census. [4] The city was built on mining the rich iron ore of the Mesabi Iron Range and still relies on that industrial activity today.
Gilbert (pop. 1,799) is the location of Lake Ore-be-gone, an artificial lake created by flooding three open-pit iron ore mines. Hibbing (pop. 16,361) is the largest city by area in the state of Minnesota. It is home to the Hull–Rust–Mahoning Open Pit Iron Mine, one of the world's largest open pit iron mines. Hoyt Lakes (pop. 1,888) is in ...
This mine is the largest open pit iron mine in the world. Located in the Mesabi Range, it supplied as much as one-fourth of all the iron ore mined in the United States during its peak production years of World War I and World War II. This area of the Mesabi Range was explored in 1893–1894, shortly after the Mountain Iron mine was established ...
Mountain Iron Mine is a former mine in Mountain Iron, Minnesota, United States. Opened in 1892, it was the first mine on the Mesabi Range , which has proved to be the largest iron ore deposit ever discovered in the United States.
An open pit mine began operation in 1882, and moved to underground mining by 1900 for safety reasons. From 1901 until the end of active mining in 1962, the Soudan Mine was owned by the United States Steel Corporation's Oliver Iron Mining division. By 1912 the mine was at a depth of 1,250 feet (381 m). [4]