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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]
Soon after Ola's death, the Powers moved to a cabin located on a hill overlooking the entrance to their mine. By this time the United States had entered World War I and a draft had been instituted. All able bodied men were obliged to register, but, according to the Power brothers, when they attempted to do so, the recruiter said that they were ...
Fukuoka #17 - Omuta, Branch Prisoner of War Camp was a Japanese prisoner-of-war camp located at the Mitsui Kozan Miike Kogyo-Sho coal mine and Mitsui Zinc Foundry in Shinminato-machi, Omuta-shi, Fukuoka-ken, Japan, during World War II. It was the largest POW camp in Japan.
A specimen of stibnite. The Stibnite Mining District sits atop the Idaho Batholith, one of the signature features of Idaho’s unique geology.The Idaho Batholith is nearly 14,000 square miles (36,000 km 2) of granite, formed from the collision of the oceanic plate and the North American Plate around 100 million years ago during the Cretaceous period. [10]
Located in the front sector allocated to XV Corps (see Capture of Mametz). Position: 17 Carnoy: No 11: 2,300 kilograms (5,000 lb) fired on 1 July 1916: Also known as the Kasino Point mine; located in the front sector allocated to XIII Corps (see Capture of Montauban). The mine was mistimed and blew after the infantry attack had commenced.
Mine warfare consists of: minelaying, the deployment of explosive naval mines at sea to sink enemy ships or to prevent their access to particular areas; minesweeping, the removal or detonation of naval mines; and degaussing, the process of decreasing or eliminating a remnant magnetic field in a ship's hull to prevent its detection by magnetic mines.
No.1-class auxiliary patrol boats played an active part in the post-war minesweeping effort. After the war, the commander of Japan's mine sweeping operations noted that he thought this mining campaign could have directly led to the defeat of Japan on its own had it begun earlier.
A mine gallery in the ice at Pasubio The Italian front in 1915–1917, initial Italian conquests shown in blue. The mines on the Italian front during the First World War comprised a series of underground explosive charges of varying sizes, secretly planted between 1916 and 1918 by Austro-Hungarian and Italian tunneling units beneath their enemy's lines along the Italian front in the Dolomite ...