Vandals damaged rock formations in a Nevada national park (4 photos + 1 video)

Last weekend, visitors to Lake Mead National Park, Nevada, USA, seriously damaged one of the petrified dunes. Eyewitnesses filmed how two men climbed onto the ancient formation, and it collapsed with a roar.





The video was sent to the National Park Service.

The daughter of one of the men stands behind them, she screams in horror: “Dad, don’t fall!”

But the adults continue to throw boulders.



John Haynes, an information officer, said: "This is one of my favorite parts of the park and they're just destroying it. I don't understand it. Why do this? I take it as a personal insult."

Destruction of a federally protected property may result in a felony charge, punishable by fines and imprisonment.





Lake Mead Natural Recreation Area, located near Las Vegas, is visited by approximately 6 million people annually.

"The park is 1.5 million acres. We have two large lakes, a section of the Colorado River. With the size of our staff, it's pretty hard to keep track of everything," Haynes says.



The National Park Service receives thousands of reports each year.

Visitors are asked to record what they see and collect information (such as license plate numbers) that will help police identify offenders.