2 visitors captured on video destroying ancient rock formations at Lake Mead CNNTwo men topple boulders at Nevada national park as young girl watches in fear: ‘Daddy, don’t fall!’ New York Post U.S. Park rangers search for 2 suspects accused of vandalism at Lake Mead KLAS – 8 News NowMen caught on camera destroying protected rock formations at Lake Mead National Recreation Area Fox 5 Las VegasAid an Investigation or Report Something Suspicious in any National Park Service Site – Investigative Services (U.S National Park Service