Montana is known for its coal mining industry.

Montana is one of the top coal-producing states in the U.S., with large coal reserves located primarily in the eastern part of the state. The Powder River Basin, which spans parts of Montana and Wyoming, is one of the most significant coal-producing regions in the country. Coal from Montana is mainly used for electricity generation, and the state has a rich history of coal mining. The industry continues to play an important role in Montana's economy, despite efforts to shift towards cleaner energy sources. The state's coal mines are some of the largest and most productive in the nation.