1. In 1876, the Battle of the Little Bighorn took place on June 25. It was also known as Custer's Last Stand, as it resulted in the death of George Armstrong Custer and the defeat of his cavalry troops by the Lakota and Cheyenne tribes.

2. On June 25, 1910, the worst forest fire in U.S. history swept across Montana, Idaho, and Washington, burning over 3 million acres of land and killing 87 people.

3. In 1938, the first public showing of a television broadcast was held in Great Falls, Montana on June 25. A small audience watched a broadcast of President Franklin D. Roosevelt's address at the opening of the World's Fair in New York.

4. June 25, 1949, saw the dedication of the Hungry Horse Dam in northwest Montana. The dam, which is 564 feet high and 2,115 feet long, created Hungry Horse Reservoir, an important source of hydroelectric power and irrigation.

5. The first known sighting of the elusive wolverine in Montana occurred on June 25, 2003. The wolverine, which is a rare and endangered species, was spotted by a wildlife biologist in the Cabinet Mountains Wilderness area.