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The White Pine mine produced copper until 1995. In its early days the company was known for its use of advanced mining and transport systems (not all of which worked very well) including the Dashaveyor , a high speed transportation system, and what was at the time the world's largest hard rock tunneling machine to be sold to a mining company. [ 4 ]
In May 1997 the company withdrew the EPA permit application, saying that further permitting delays had made the project uneconomical, and announced plans to begin reclamation of the mine site. The tailings impoundment at the White Pine Mine is presently the site of significant environmental degradation. The University of Montana undertook ...
The White Pine Mine, just east of the state park in Ontonagon County, was the last copper-focused mine in Michigan’s Upper Peninsula. It closed in 1997 and Highland Copper plans to repurpose ...
Mine reclamation is the process of modifying land that has been mined to restore it to an ecologically functional or economically usable state. Although the process of mine reclamation occurs once mining is complete, the planning of mine reclamation activities may occur prior to a mine being permitted or started. [1]
A gold mine could reopen in the Sierra Nevada. Environmentalists fear air pollution, empty wells and toxic waste.
Anyone who sees any kind of depression in the ground or sinkhole opening can call the Bureau of Abandoned Mine Reclamation at 814-472-1800.
White Pine mine - White Pine, Ontonagon County; the last mine to close in the Copper Country, in 1995; Whittlesey mine - Isle Royale, Keweenaw County; Winona mine - Winona, Houghton County; Winthrop mine - Central; Wolverine Mine - Wolverine; Wyandot mine - Twin Lakes, Houghton County; Wyoming mine - Wyoming (Helltown)
Between 2019 and 2023, Sibelco said its Spruce Pine sites produced almost 60% more high-quality quartz. And last year, the company announced it would invest $200 million into the site by 2025 to ...