|This article is part of series on the|
|Economy of the|
United States portal
Mining in the United States has been active since the beginning of colonial times, but became a major industry in the 19th century with a number of new mineral discoveries causing a series of mining rushes. In 2015, the value of coal, metals, and industrial minerals mined in the United States was US $109.6 billion. 158,000 workers were directly employed by the mining industry.
The mining industry has a number of impacts on communities, individuals and the environment. Mine safety incidents have been important parts of American occupational safety and health history. Mining has a number of environmental impacts. In the United States, issues like mountaintop removal, and acid mine drainage have widespread impacts on all parts of the environment. As of January 2020. the EPA lists 142 mines in the Superfund program.
Top Commodities mined in the US, 2019
|Rank||Commodity||Value, US$ billion|
|5||Construction sand and gravel||9.0|
|7||Industrial sand and gravel||5.7|
|Source: US Geological Survey, Mineral Commodities Summaries, 2020.|
From 1880 to 1910, mine accidents claimed thousands of fatalities, with more than 3,000 in 1907 alone. Where annual mining deaths had numbered more than 1,000 a year during the early part of the 20th century, they decreased to an average of about 500 during the late 1950s, and to 93 during the 1990s. In addition to deaths, many thousands more are injured (an average of 21,351 injuries per year between 1991 and 1999), but overall there has been a downward trend of deaths and injuries.
The Monongah Mining Disaster was the worst mining accident of American history; 362 workers were killed in an underground explosion on December 6, 1907 in Monongah, West Virginia. The U.S. Bureau of Mines was created in 1910 to investigate accidents, advise industry, conduct production and safety research, and teach courses in accident prevention, first aid, and mine rescue. The Federal Coal Mine Health and Safety Acts of 1969 and 1977 set further safety standards for the industry.
In 1959, the Knox Mine Disaster occurred in Port Griffith, Pennsylvania. The swelling Susquehanna river collapsed into a mine under it and resulted in 12 deaths. In Plymouth, Pennsylvania, the Avondale Mine Disaster resulted in the deaths of 108 miners and two rescue workers after a fire in the only shaft eliminated the oxygen in the mine. Federal laws for mining safety ensued this disaster. Pennsylvania suffered another disaster in 2002 at Quecreek, 9 miners were trapped underground and subsequently rescued after 78 hours. During 2006, 72 miners lost their lives at work, 47 by coal mining. The majority of these fatalities occurred in Kentucky and West Virginia, including the Sago Mine Disaster. On April 5, 2010, in the Upper Big Branch Mine disaster an underground explosion caused the deaths of 29 miners.
Further information: Environmental impact of mining
Mining has environmental impacts at many stages in the process and production of mining. In the United States, many different regions in the United States have environmental challenges caused by either historical or current mining.
Mountaintop removal mining (MTR), also known as mountaintop mining (MTM), is a form of surface mining at the summit or summit ridge of a mountain. Coal seams are extracted from a mountain by removing the land, or overburden, above the seams. This process is considered to be safer compared to underground mining because the coal seams are accessed from above instead of underground. In the United States, this method of coal mining is conducted in the Appalachian Mountains in the eastern United States. Explosives are used to remove up to 400 vertical feet (120 m) of mountain to expose underlying coal seams. Excess rock and soil is dumped into nearby valleys, in what are called "holler fills" ("hollow fills") or "valley fills".The practice of MTM has been controversial. While there are economic benefits to this practice, there are also concerns for environmental and human health costs.
There are 10,000s of abandoned mines in the United States. Many abandoned mines pose environmental challenges, such as Acid mine drainage. In Colorado alone, there are 18,382 abandoned mines. The United States has had many different environmental disasters caused by these mines, such as the 2015 Gold King Mine waste water spill. Many superfund sites are mines. As of January 2020[update]. the EPA lists 142 mines in the Superfund program
Mines are often controversial in their local areas, with local residents split by those in favor particularly due to the economic impact of new jobs and those concerned by the environmental impact and occupational hazards. In the case of the proposed Crandon mine, the U.S. Supreme Court found that tribes have the right to regulate water and air, which destroyed the economic feasibility of the project.