Top Trails: Yellowstone and Grand Teton National Parks: 46 Must-Do Hikes for Everyone

100 Things to See in the National Parks: Your Guide to the Most Popular Features of the US National Parks (National Park Travel Guide Series)

I Love You More Than Mountains

One Best Hike: Grand Canyon: Everything You Need to Know to Successfully Hike from the Rim to the River―and Back

Arizona State Parks: A Guide to Amazing Places in the Grand Canyon State (Southwest Adventure Series)

Hiking the Grand Canyon: A Detailed Guide to More Than 100 Trails

The Prickly Problem: Dr. Pete the Porcupine (Biff Bam Booza)

Arizona and the Grand Canyon (Travel Guide)

Grand Canyon Rim To Rim History (Ultrarunning History)

Best Easy Day Hikes Grand Canyon National Park (Best Easy Day Hikes Series)