Moon Montana & Wyoming: Including Yellowstone, Grand Teton & Glacier National Parks (Moon Handbooks)

Montana Off the Beaten Path®: A Guide to Unique Places (Off the Beaten Path Series)

Yellowstone Treasures: The Traveler's Companion to the National Park

Moon Glacier National Park: Including Waterton Lakes National Park (Moon Handbooks)

Lonely Planet Yellowstone & Grand Teton National Parks (Travel Guide)

Moon Mount Rushmore & the Black Hills: Including the Badlands (Moon Handbooks)

Best Easy Day Hikes Glacier and Waterton Lakes National Parks (Best Easy Day Hikes Series)

National Geographic Guide to National Parks of the United States, 8th edition (National Geographic Guide to the National Parks of the United States)

Best Easy Day Hikes Yellowstone National Park (Best Easy Day Hikes Series)

Fodor's Pacific Northwest: with Oregon, Washington & Vancouver (Full-color Travel Guide)