- Major Problems in California History
- Youghiogheny: Appalachian River, Revised Edition
- America's Great River Journeys: 50 Canoe, Kayak, and Raft Adventures
- The Primacy of Doubt: From Quantum Physics to Climate Change, How the Science of Uncertainty Can Help Us Understand Our Chaotic World
- America's Great Mountain Trails: 100 Highcountry Hikes of a Lifetime
- Barbara Moore
- Thomas Gately Briody
- Frank Orenstein
- Karen Berne
- Helena Drysdale
- Park Foundation National
- Vincent Kohler
- Denise Danks
- Bill Leitch
- Paul Vasey
- Timothy Frew
- L.M. Vincent
- National Park Foundation
- Michael Breuer
- Linda Lancione Moyer
- Pauline Halford
- James Murfin
- Steve Simon
- Mark Roberty
- J. Dennis Robinson