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The first electric mine locomotive produced by the Jeffrey Manufacturing Company, in 1888. The Jeffrey Manufacturing Company, was an American industrial equipment manufacturing company, at one time the largest producer of coal cutting machines and mining locomotives in the world.
Polaris Fashion Place is a two level shopping mall and surrounding retail plaza serving Columbus, Ohio, United States.The mall, owned locally by Washington Prime Group, is located off Interstate 71 on Polaris Parkway in Delaware County just to the north of the boundary between Delaware and Franklin County.
Word spread among pro-Obama miners who contacted their union, the United Mine Workers of America, resulting in 440 miners taking the day off to avoid appearing in the ad in a contract-sanctioned protest, halting production at Consol's Blacksville No. 2 coal mine. [40] Lobbying efforts on the part of Consol have also been an issue of controversy.
Crow Butte was the first uranium mine developed in Nebraska. It was discovered in 1980 and begin production in April 1991. It is a roll-front uranium deposit, mined using in-situ recovery (ISR). Due to weakening of the uranium market, production ceased in 2018. The project is under care and maintenance pending an improvement in uranium prices ...
Delaware Fissure mine; Dover mine - Dover location; Dorchester Mining Company mine - Houghton County; Drexel mine - Delaware, Keweenaw County; Duncan's location - near Duncan Bay on Isle Royale National Park; Eagle Exploration prospect - Twin Lakes, Houghton County; Eagle Harbor mines - Eagle Harbor, Keweenaw County; Eagle mine - under ...
MP Materials owns and operates the Mountain Pass mine, the only operating rare earth mine and processing facility in the United States. [10] MP Materials focuses its production on Neodymium - Praseodymium (NdPr), a rare earth material used in high-strength permanent magnets that power the traction motors found in electric vehicles , robotics ...
From 1987, ore from the Hilton mine was used to supplement the Mount Isa ore, and by 1992, the treatment rate of the No. 2 concentrator had reached five million t/y, with 30% coming from Hilton and 70% from the Isa mine. [46] In 1991, two semi-autogenous grinding mills ("SAG mills") were installed in the copper concentrator.
Idaho Cobalt Operations (ICO) is a cobalt mine located in Lemhi County, Idaho in the United States near the town of Salmon. [1] The mine has reserves amounting to 3.8 million tonnes of ore grading 0.5% cobalt. [2] The mine will also produce copper and gold. [3] The project is located directly adjacent to the inactive Blackbird mine.