Sandstone rocks at Valley of Fire State Park, Nevada; photo by Andy Price on Flickr (noncommercial use permitted with attribution / share alike).
Official State Rock of Nevada
Nevada designated sandstone as the official state rock in 1987, a result of the efforts of children from Gene Ward Elementary School in Las Vegas. The Nevada state capital building is made of sandstone. All State Rocks
Sandstone provides some of Nevada's most spectacular scenery - it's found throughout the state of Nevada in areas like the Valley of Fire State Park and Red Rock Canyon Recreational Lands. The forces of nature that formed these visual displays have taken millions of years to create - the sandstone is 180 to 190 million years old; comprised of lithified sand dunes of the Jurassic period.