1. Blizzards: December 26 in Montana history undoubtedly brings memories of brutal blizzards which frequently hit the state during the winter season. One such incident is the blizzard of 1917, which was especially devastating in Montana, causing loss of life and property damage.

2. The opening of Yellowstone: On December 26, 1870, a group of explorers led by Henry D. Washburn ventured into the previously unexplored Yellowstone region. This led to the eventual establishment of Yellowstone National Park, the first National Park in the country.

3. The Anaconda Copper Mining Company fire: On December 26, 1951, a fire broke out in the smelter of the Anaconda Copper Mining Company in Anaconda, Montana. The fire caused significant damage, but fortunately, no one was injured.

4. Exploration of Montana by Lewis and Clark: On December 26, 1804, the Lewis and Clark expedition reached the Bitterroot Valley, which is now part of Montana. The expedition would later continue exploring the area, making important discoveries and documenting the natural wonders of the state.

5. Prohibition Era: Montana was one of the states that chose to implement prohibition long before the rest of the country. On December 26, 1918, Governor Sam V. Stewart signed a bill that made Montana the first state to enact statewide prohibition. This law went into effect on January 1, 1919, and lasted until the repeal of prohibition in 1933.