Windows into the Earth: The Geologic Story of Yellowstone and Grand Teton National Parks

Super Volcano: The Ticking Time Bomb Beneath Yellowstone National Park

Roadside Geology of Yellowstone Country

Eruption: The Untold Story of Mount St. Helens

Carving Grand Canyon: Evidence, Theories, and Mystery (Second Edition)

The 1959 Yellowstone Earthquake (Disaster)

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

Yellowstone for Nature Photographers

Full-Rip 9.0: The Next Big Earthquake in the Pacific Northwest