Public Domain Image: NPS
Great Basin National Monument was designated on this date in 1922. It became a National Park in 1986, and protects more than 100 square miles in Eastern Nevada. This is high country; Wheeler Peak, the second tallest mountain in Nevada, is in the northwestern portion of the park and tops out at more than 13,000 feet. The park is also home to Bristlecone Pines, the oldest known of which was nearly 5,000 years old when inadvertently cut down.