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The Milford Mine produced high manganese-content iron ore [2] in Wolford Township, Minnesota, United States. On February 5, 1924, it was the site of the Milford Mine Disaster , the worst mining accident in Minnesota history, when it was flooded by water from a nearby lake, killing 41 miners.
Pages in category "Manganese mines in the United States" The following 5 pages are in this category, out of 5 total. This list may not reflect recent changes .
In 1917, three men—B.R. Jefferson, B. Edwards, and J. Marrs—discovered a manganese deposit with a high concentration of 20% to 40%. [6] Coinciding with World War I, open-pit mining operations began at the mine the same year, supplying the United States military with manganese for military equipment such as steel combat helmets.
The Maple Mountain mine is a mine located in the north-east of the United States in Maine. Maple Mountain represents one of the largest manganese reserve in the United States , having estimated reserves of 341 million tonnes of manganese ore grading 9% manganese metal.
Mine: State: Coordinates: Town: Owner: Dates: Comments: Pyne Mine: Alabama 33°22′33.18″N 86°55′21.65″W Lacey's Chapel: Woodward Iron Company: 1918–1971 One of only two shaft mines dug in the Birmingham District, and the last ore mine to operate in the region, closing in 1971. Sloss Mines: Alabama 33.39816°N 86.93276°W Red Mountain
This is a list of countries by manganese ore mining in 2015, based on United States Geological Survey accessed in 2016 ... operates the Woodie Woodie manganese mine [1]
The Chamberlain Manganese Deposits are located in north-central United States near Chamberlain, South Dakota. The Chamberlain Deposits represent one of the largest manganese reserves in the United States having estimated reserves of 2 billion tons of manganese ore grading 0.6% manganese metal. Although plentiful, the grade is so low in ...
Non-coal mining fatalities in the United States, 1911-2014 (data from US Department of Labor) From 1880 to 1910, mine accidents claimed thousands of fatalities, with more than 3,000 in 1907 alone. [27]