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Coal mining is an industry in transition in the United States. Production in 2019 was down 40% from the peak production of 1,171.8 million short tons (1,063 million metric tons) in 2008. Employment of 43,000 coal miners is down from a peak of 883,000 in 1923. [ 1 ] Generation of electricity is the largest user of coal, being used to produce 50% ...
Since then, the coal industry has grown to become the state's most important industry. Wyoming currently produces over 40% of the nation's coal, and is second only to West Virginia in terms of coal production. The majority of Wyoming's coal is mined in the Powder River Basin, which is located in the northeastern corner of the state.
Coal mining. Coal mining is the process of extracting coal from the ground or from a mine. Coal is valued for its energy content and since the 1880s has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production.
The following table lists the coal mines in the United States that produced at least 4,000,000 short tons of coal.. According to the U.S. Energy Information Administration (EIA), there were 853 coal mines in the U.S. in 2015, producing a total of 896,941,000 short tons of coal.
Introduced in 1876. Became a common process during the heady days of gas-lighting from the 1870s to the first decade of the 20th century, especially useful for mixing with coal gas. Process had similar positives and negatives as straight water gas, but also had illuminant value, as well as higher cost, due to oil/tar use.
In 2015, the value of coal, metals, and industrial minerals mined in the United States was US$109.6 billion. 158,000 workers were directly employed by the mining industry. [1] The mining industry has a number of impacts on communities, individuals and the environment.
The Pittsburgh coal seam is the thickest and most extensive coal bed in the Appalachian Basin; [1] hence, it is the most economically important coal bed in the eastern United States. The Upper Pennsylvanian Pittsburgh coal bed of the Monongahela Group is extensive and continuous, extending over 11,000 mi 2 through 53 counties.
The actual average generated power from coal in 2006 was 227.1 GW (1991 TWh per year), [ 14 ] the highest in the world and still slightly ahead of China (1950 TWh per year) at that time. [citation needed] In 2000, the US average production of electricity from coal was 224.3 GW (1966 TWh for the year). [ 14 ]