National Miner’s Day is observed in the United States every December 6 to honor the victims of the Monongah mining disaster, the deadliest mining incident in American history, which occurred in 1907. This day recognizes the significant contributions of miners, who extract various minerals essential for multiple sectors of the economy, including coal, granite, and metals. The observance was established by the United States Congress in 2009 and aims to commemorate the sacrifices of miners, both past and present. Government agencies, professional organizations, and mining companies, such as the Mine Safety and Health Administration, support the celebration by hosting events and promoting awareness of miners' roles in the economy. Participants often engage in social media activities using the hashtag #NationalMinersDay to further spread recognition of this professional holiday.