As an AI language model, here are 5 interesting facts about June 26 in Nevada history:

1. In 1833, John C. Fremont, an American explorer, and politician, had his first encounter with the Great Salt Lake in Nevada. The lake was one of the largest saltwater lakes in the world, covering an area of approximately 1,700 square miles.

2. In 1934, the elected Governor of Nevada, Fred Balzar, died unexpectedly in office. Balzar was known for his success in bringing Prohibition to an end in Nevada, and his death marked the beginning of a new era in the state's politics.

3. In 1959, the University of Nevada, Las Vegas (UNLV) received its official university status. The university was originally established as a branch of the University of Nevada, Reno, in 1957, but its rapid growth and success in the following years led to its recognition as a separate and distinct institution.

4. In 1977, Elvis Presley performed his last concert in Nevada at the Convention Center in Reno. The concert was part of Presley's final tour, which followed a series of health problems that had taken a toll on the singer's physical and mental well-being.

5. In 2015, a massive wildfire broke out near the town of Elko, Nevada, burning more than 1,200 acres of land and forcing the evacuation of hundreds of residents. The fire was caused by lightning strikes and eventually burned for several days before being contained by local firefighters.