The U.S. Supreme Court has agreed to allow two conservation groups to intervene in Utah cases involving state efforts to have dirt washes, seasonal streambeds, and possibly even cattle trails and hiking paths declared roads across federal lands.

Vandalism in its many forms, seems to be continuing unabated in the national parks. The Leave No Trace Seven Principals don’t appear to apply to those who wish to let others know they were there in the form of acrylic paint on 180-million year old sandstone and gouges into rock and living trees in places like Zion, Joshua Tree, Olympic, and Redwood national parks? Is modern graffiti on protected lands considered art and future history for archeologists, much like the ancient petroglyphs and pictographs now safeguarded within the boundaries of natural parks, national memorials, and other park units? Or is it a despoiling of protected National Park Service lands by a selfish few who apparently learned no respect for keeping the landscape unblemished for the enjoyment of present and future generations? Contributing editor and photographer Rebecca Latson offers her own thoughts on the subject.

The southern half of Utah is canyon country, a land of aridity, sparse vegetation, and unique and scenically spectacular topography and geology. It is a land rich in sites of archaeological importance and parts of it are sacred to indigenous people. It is also mostly public land, owned by the American people, part of their national legacy, and for a century it has been contested terrain.

It's time to test your national parks knowledge and learn a little bit of national parks trivia, too, with the latest National Parks Quiz and Trivia piece (#14). See how much you know about the nation's protected lands before checking the answers at the bottom of the piece.