A chlorine gas leak at Roaring Springs forced the closure of all inner canyon corridor trails at Grand Canyon National ... planned burning Tom Horne asks Arizona lawmakers to boost school police ...

Hidden beneath the East Coast of the United States lies the Chesapeake Bay impact crater, a colossal structure formed 35 million years ago when a massive asteroid struck the region. Spanning 25 miles ...

Grand Canyon Railway offers a year-round schedule from the historic depot in Williams, AZ, to the South Rim, plus Polar ...

Tom Myers has been called Mr. Grand Canyon. Not only is he an avid hiker and explorer in the canyon, he’s also the authority on canyon wilderness medicine.

Support for public lands and national monuments is strong across political parties and demographics. Let's dig into the poll ...