1. On July 7, 1865, Sheriff Henry Plummer, leader of the notorious vigilante group known as the Innocents, was hanged by a group of vigilantes in the town of Bannack. Plummer, who had been accused of numerous crimes including murder and robbery, was given a trial by the vigilantes and found guilty. His hanging remains one of the most infamous incidents in Montana history.

2. July 7, 1937, was the day that the first state highway patrol station in Montana opened in Billings. The station was staffed by six officers and was part of a wider effort to improve road safety on Montana's highways.

3. In 1987, on July 7, the small town of Ekalaka in southeastern Montana experienced a major flood. The flooding, which was caused by heavy rains, led to the evacuation of many of the town's residents and caused significant damage to homes and other buildings.

4. On July 7, 1994, the US Forest Service allowed a controlled fire to burn in Yellowstone National Park. The fire, which had been started by lightning, grew into the largest wildfire in the park's history and burned over 1.5 million acres. While controversial at the time, the decision to allow the fire to burn was later praised as a successful use of prescribed fire to manage the park's ecosystem.

5. In 2016, on July 7, a massive sinkhole appeared in downtown Bozeman, Montana. The sinkhole, which was over 50 feet wide and 30 feet deep, was caused by a collapsed sewer line. The sinkhole disrupted traffic and caused damage to nearby buildings, but luckily no one was injured in the incident.