The primary source of energy production in the Rocky Mountain region is fossil fuels.

Fossil fuels, including coal, natural gas, and oil, are the main sources of energy production in the Rocky Mountain region. The area is rich in natural resources, with significant coal deposits found in states like Wyoming and Colorado, making coal mining a crucial industry historically. In recent years, natural gas extraction has also increased, driven by advancements in drilling technologies such as hydraulic fracturing. While renewable energy sources like wind and solar are gaining popularity and investment, fossil fuels continue to dominate the energy landscape, significantly impacting local economies, energy policies, and environmental considerations in the region.