National Geographic Complete National Parks of the United States, 3rd Edition: 400+ Parks, Monuments, Battlefields, Historic Sites, Scenic Trails, Recreation Areas, and Seashores

100 Hikes of a Lifetime: The World's Ultimate Scenic Trails

National Geographic Guide to National Parks of the United States 9th Edition

100 Parks, 5,000 Ideas: Where to Go, When to Go, What to See, What to Do

USA National Parks: Lands of Wonder

A Walk in the Park

Force of Nature: Three Women Tackle The John Muir Trail

Grandma Gatewood's Walk: The Inspiring Story of the Woman Who Saved the Appalachian Trail

Force of Nature: Three Women Tackle The John Muir Trail

A Walk in the Park: The True Story of a Spectacular Misadventure in the Grand Canyon