National Miners Day is observed on December 6 each year to honor the men and women who work in America's mines, producing coal, metals and minerals that power homes and build everything from smartphones to bridges. The date marks the anniversary of the Monongah mining disaster in West Virginia in 1907, the deadliest mining accident in U.S. history. The day recognizes miners' hard work and remembers those who lost their lives underground.
History of National Miners Day
Mining helped build the United States, from the coal that fueled factories and railroads to the iron, copper and other metals used in construction and technology. But mining was also dangerous. Miners faced explosions, cave-ins, flooding and lung disease.
On the morning of December 6, 1907, explosions tore through two connected coal mines in Monongah, West Virginia. The official death toll was 362 miners, though historians believe the true number may have been higher, since many workers and helpers were not recorded. Many victims were immigrants from Italy and Eastern Europe.
The disaster, along with other deadly accidents that year, led Congress to create the U.S. Bureau of Mines in 1910 to study mine safety. Later laws, including the Federal Mine Safety and Health Act of 1977, created the Mine Safety and Health Administration (MSHA). In 2009, the U.S. Senate passed a resolution designating December 6 as National Miners Day.
Why National Miners Day Matters
Miners produce many of the raw materials modern life depends on, including coal, copper, lithium, iron and the minerals used in electronics and renewable energy.
The day honors their sacrifice. Mining has become far safer over the past century, but miners still face serious risks, including injuries and black lung disease.
Remembering disasters like Monongah also shows how tragedy can lead to safety reforms that save lives, and why worker protections matter.
How to Celebrate National Miners Day
- Learn the history: read about the Monongah disaster and mining towns.
- Visit a mining museum: explore exhibits or tour a historic mine.
- Thank a miner: recognize miners and their families in your community.
- Discover where minerals go: learn what minerals are in your phone or car.
- Support miners' health: learn about programs for black lung and mine safety.
Celebrating at Work, School and Home
At work, share information about the minerals your company or industry depends on, or recognize employees from mining families. In classrooms, students can study rocks and minerals, map where minerals are mined in the U.S., or learn how mine safety laws developed after disasters. At home, families can visit a mining museum or historic mine tour, look at household items and guess which minerals they contain, or read stories about mining towns. Keep discussions about disasters age-appropriate for younger children.
Fun Facts About National Miners Day
- The Monongah disaster on December 6, 1907, officially killed 362 miners.
- Congress created the U.S. Bureau of Mines in 1910.
- The Senate designated National Miners Day in 2009.
National Miners Day FAQs
When is National Miners Day?
National Miners Day is observed on December 6 each year.
Why is National Miners Day on December 6?
It marks the anniversary of the 1907 Monongah mining disaster in West Virginia.
What was the Monongah mining disaster?
Explosions in two coal mines killed at least 362 miners, the deadliest mining disaster in U.S. history.
When was National Miners Day established?
The U.S. Senate designated it in 2009.
What agency oversees mine safety today?
The Mine Safety and Health Administration (MSHA), created under the 1977 Mine Act.
How can I honor miners?
Learn mining history, visit a mining museum and thank miners and their families.