[leadin]Across the Western National Park System, vandalism of natural features, like rock faces and trees, has risen steadily in recent years, with more than 600 incidents reported since 2013.[/leadin]

This year, there have been more than 150 incidents in the Pacific West and Intermountain West regions. Such vandalism is difficult to undo, though workers can scrape off paint with spatulas, or use chemical treatments, provided they won’t damage archaeological features.
People “have a desire to leave a permanent mark,” says Smith, “but the difference between prehistoric times and now, is we have other mechanisms to leave a permanent record without defacing or destroying something that belongs to every American.”
This article originally appeared in High Country News, HCN.org.