Some 4,000 to 8,500 years after a Native American artist made an etching in a 30-million-year-old volcanic boulder at what is now Texas' Big Bend National Park, visitors decided.
The US National Park Service has reported another act of vandalism to Native American rock art, this time in the biodiverse Big Bend National Park in Texas.
"With each instance of vandalism, part of our nation s heritage is lost forever," Big Bend National Park Superintendent Bob Krumenaker said in a release.