| Titles | Order |
| Landscapes of the Interior: Re-Explorations of Nature and the Human Spirit by Don Gayton | Literature, 1997 |
| The Complete Sea Kayaker's Handbook by Shelley Johnson | Instructional, 2002 |
| Down to Earth: Nature's Role in American History by Ted Steinberg | Nature and the Environment, 2002 |
| Gifford Pinchot and the Making of Modern Environmentalism (Pioneers of Conservation) by Char Miller | History/Biography, 2002 |
| Hiking in the Sierra Nevada by John Mock | Outdoor Adventure Guidebook, 2002 |
| Lichens of North America by Irwin M. Brodo | Nature Guidebook, 2002 |
| Rowing to Latitude: Journeys Along the Arctic's Edge by Jill Fredston | Outdoor Literature, 2002 |
| Wild Wings: Poems for Young People by Jane Yolen | Children's, 2002 |
| 100 Hikes in Yosemite National Park by Marc J. Soares | Outdoor Adventure Guidebook, 2003 |
| Alone by Richard E. Byrd | Classic, 2003 |
| The Beckoning Silence by Joe Simpson | Outdoor Literature, 2003 |
| Dot & Jabber and the Big Bug Mystery by Ellen Stoll Walsh | Children's, 2003 |
| First Light: Acadia National Park and Maine's Mount Desert Island by Charles R. Tyson Jr. | Design and Artistic Merit, 2003 |
| Ice Island: The Expedition to Antarctica's Largest Iceberg by Greg Stone | Nature and the Environment, 2003 |
| Jam and Jelly by Holly and Nellie (Individual Titles) by Gloria Whelan | Children's, 2003 |
| Mammal Tracks & Sign: A Guide to North American Species by Mark Elbroch | Nature Guidebook, 2003 |
| Southern Exposure: A Solo Sea Kayaking Journey Around New Zealand's South Island by Chris Duff | History/Biography, 2003 |
| White Mountain Guide by Appalachian Mountain Club Books | Work of Significance, 2003 |
| 100 Classic Hikes in Oregon: Oregon Coast, Columbia Gorge, Cascades, Eastern Oregon, Wallowas (100 Classic Hikes in) by Douglas Lorain | Outdoor Adventure Guidebook, 2004 |
| Dragonflies of the North Woods (North Woods Naturalist Guides) by Kurt Mead | Nature Guidebook, 2004 |
| Edge of the Earth, Corner of the Sky by Art Wolfe | Design and Artistic Merit, 2004 |
| The Mountains Know Arizona: Images of the Land and Stories of Its People by Rose Houk | Design and Artistic Merit, 2004 |
| Out There by Ted Kerasote | Outdoor Literature, 2004 |
| Rock Climbing: Mastering Basic Skills (Mountaineers Outdoor Expert) by Craig Luebben | Instructional, 2004 |
| The Snowflake by Kenneth G. Libbrecht | Nature and the Environment, 2004 |
| Walden by Henry David Thoreau | Classic, 2004 |
| Ways to the Sky: A Historical Guide to North American Mountaineering (American Alpine Book Series) by Andrew Selters | History/Biography, 2004 |
| Where the Mountain Casts its Shadow: The Personal Costs of Climbing by Maria Coffey | Outdoor Literature, 2004 |
| Whose Garden Is It? by Mary Ann Hoberman | Children's, 2004 |
| Basic Kayaking: All the skills and gear you need to get started (Stackpole Basics) | Instructional, 2005 |
| Breaking Trail: A Climbing Life by Arlene Blum | History/Biography, 2005 |
| Glacier Mountaineering: An Illustrated Guide to Glacier Travel and Crevasse Rescue by Andy Tyson | Instructional, 2005 |
| The Little Green Island with a Little Red House by Sharon Lovejoy | Children's, 2005 |
| Mountain Ranges of Colorado by John Fielder | Design and Artistic Merit, 2005 |
| Out of Eden: An Odyssey of Ecological Invasion by Alan Burdick | Natural History, 2005 |
| Savage Summit: The True Stories of the First Five Women Who Climbed K2, the World's Most Feared Mountain by Jennifer Jordan | Outdoor Literature, 2005 |
| Sea Turtles: A Complete Guide to Their Biology, Behavior, and Conservation by James R. Spotila | Nature and the Environment, 2005 |
| Snakes Of The Southeast (Wormsloe Foundation Nature Book) by Whit Gibbons | Nature Guidebook, 2005 |
| Top Trails Yellowstone & Grand Teton National Parks: Must-Do Hikes for Everyone (Top Trails) by Andrew Dean Nystrom | Best Outdoor Adventure Guidebook, 2005 |
| Being Caribou: Five Months on Foot with a Caribou Herd by Karsten Heuer | Outdoor Literature, 2006 |
| Caterpillars of Eastern North America: A Guide to Identification and Natural History (Princeton Field Guides) by David L. Wagner | Nature Guidebook, 2006 |
| Condor: To the Brink and Back--The Life and Times of One Giant Bird by John Nielsen | Natural History, 2006 |
| Gaia Girls Enter the Earth (Gaia Girls) by Lee Welles | Children's, 2006 |
| Illustrated Atlas of the Himalaya by David Zurick | Nature and the Environment, 2006 |
| The Last Season by Eric Blehm | History/Biography, 2006 |
| The Middle Fork of the Salmon River : A Comprehensive Guide by Matt Leidecker | Outdoor Adventure Guidebook, 2006 |
| Arctic Wings: Birds of the Arctic National Wildlife Refuge | Design & Artistic Merit, 2007 |
| Backcast: Fatherhood, Fly-fishing, and a River Journey Through the Heart of Alaska by Lou Ureneck | Outdoor Literature, 2007 |
| Birds of Northern South America: An Identification Guide, Volume 1: Species Accounts by Robin Restall | Nature Guidebook, 2007 |
| Blue Horizons by Beth A. Leonard | Outdoor Literature, 2007 |
| Connecticut Walk Book (Its Publication; No. 36-U) by John Hibbard | Work of Significance, 2007 |
| Forever on the Mountain: The Truth Behind One of Mountaineering's Most Controversial and Mysterious Disasters by James M. Tabor | History/Biography, 2007 |
| Glen Denny: Yosemite in the Sixties | Design & Artistic Merit, 2007 |
| Guide to the Colorado River in the Grand Canyon by Tom Martin | Outdoor Adventure Guidebook, 2007 |
| Last Stand: George Bird Grinnell, the Battle to Save the Buffalo, and the Birth of the New West by Michael Punke | National History Literature, 2007 |
| A Natural History of North American Trees by Donald Culross Peattie | Outdoor Classic, 2007 |
| Peak by Roland Smith | Children's, 2007 |
| Sky Time in Gray's River: Living for Keeps in a Forgotten Place by Robert Michael Pyle | National History Literature, 2007 |
| The Very Hard Way: Bert Loper and the Colorado River by Brad Dimock | History/Biography, 2007 |
| White Paradise: Journeys to the North Pole by Francis Latreille | Nature & the Environment, 2007 |
| American Chestnut: The Life, Death, and Rebirth of a Perfect Tree by Susan Freinkel | Natural History Literature Category, 2008 |
