The major economic industries in Montana are as follows:

Agriculture

Montana has vast agricultural land, primarily producing wheat, barley, corn, alfalfa, and livestock (especially beef). Montana plays a significant role in wheat production in the United States, and agriculture holds a crucial share in the state's economy.

Mining and Energy Industry

Montana possesses abundant natural resources, leading to active industries related to the development of resources such as coal, oil, and natural gas. Coal is particularly used for power generation and has a significant impact on the state's economy. Montana is also developing mineral resources, including the mining of metal resources like copper.

Tourism

Montana's beautiful natural scenery features many national parks and nature reserves. Notable tourist destinations include Yellowstone National Park and Grand Teton National Park. As a result, tourism has become an important industry in Montana's economy, with hiking, camping, fishing, and winter sports being very popular among visitors.

Forestry

Montana has approximately 24.4 million acres (about 9,880,000 hectares) of forest, which accounts for about 30% of the state's total area. The state's forests are primarily composed of various types of trees, including pine, conifers, and oak. These forest resources are utilized in various industries such as lumber, paper, and furniture manufacturing.