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pre thatcher labour closed most mines in the uk
See: Factories & Mines in the United Kingdom
Most of them are now closed.
it was caused by gold mines.
many mines closed because the cost of operating them had become too high
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Utah has many uranium mines but today they are closed.
Trappers were responsible for opening and closing ventilation doors to direct airflow, while putters moved coal carts to the surface using ponies or mechanical haulage. Hewers were miners who manually extracted coal from the seam using picks and shovels.
The Bureau of Mines was closed by the government in early 1996. There is no department that operates it at this point. When it was operating, it was a part of the federal government.Interiorinterior :)
Today all the uranium mines in Colorado are closed.
paid labourers
Now, probably all the uranium mines in Ontario are closed.