“Leave it as it is,” declared U.S. President Teddy Roosevelt after a 1903 sojourn at the Grand Canyon. “You cannot improve on it. The ages have been at work on it, and man can only mar it ...

Autumn marks another sweet spot for Grand Canyon tourism. With kids back in school and parents back to work, there are far fewer tourists competing for hotel rooms and trail territory.

There have been 11 deaths at Grand Canyon National Park so far this year. We asked hiking experts to share their best recommendations to avoid danger. By Derrick Bryson Taylor The Grand Canyon ...