Naturalist's Guide to the Southern Rockies, The: Colorado, Southern Wyoming, and Northern New Mexico

Southern Appalachian Celebration: In Praise of Ancient Mountains, Old-Growth Forests, and Wilderness

In the Shadow of Denali: Life And Death On Alaska's Mt. Mckinley

For Everything There Is a Season: The Sequence of Natural Events in the Grand Teton-Yellowstone Area

Rocky Mountain National Park: A History

The Colorado Plateau: A Geologic History

A Naturalist's Guide to the Southern Blue Ridge Front : Linville Gorge, North Carolina, to Talluah Gorge, Georgia

Call of Everest, The: The History, Science, and Future of the World's Tallest Peak

On Mount Hood: A Biography of Oregon's Perilous Peak