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In 2001 there were 719 underground coal mines in the United States, which produced 380.6 million metric short tons.
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∙ 13y ago
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How many underground mines are there in Australia?
There are too many underground mines to list. Australia is very rich in mining resources.
How did they mine salt in the past?
In underground mines, as today in many mines.
How many underground mines did PA have in 2001?
Pennsylvania (73 underground mines, 58.1 million short tons).
What are the attrition rates for underground mines?
In 1998 there were about 860 underground coal mines in operation. By 2001 that number had declined to 719 underground mines.
How many underground mines Kentucky have?
As of 2001 Kentucky (264 mines, 80.9 million short tons)
What can be mined underground?
Just about any mineral or metal can be mined underground or at the surface. Some typical underground mines may include gold, silver, coal, uranium, limestone, and salt. Many gemstones such as opal, diamond, emerald, ruby and sapphire are found in underground mines.
How many types of mines are there in the world?
There are various types of mines in the world, including open-pit mines, underground mines, placer mines, and drift mines. Each type of mine is designed for different geological conditions and extraction methods.
What is SIC 1222?
includes establishments primarily engaged in producing bituminous coal in underground mines or in developing bituminous coal underground mines.
What mines are located in the US?
Many mines of many kinds, producing many things, are located in the USA.
Is it possible to have a completely underground city?
Easily- many mines have people in them around the clock for years.
What state has the most underground mines?
West Virginia leads the nation in underground coal mining with 193 underground mines that produced 99.6 million metric short tons in 2001.
Where in Britain can you find underground salt?
You can find it in the underground salt mines in England
