| DV,NC | Lost Forever: Everett Ruess | Ore,; Rusho; Balhorn | 2000 |
| FI,NC | Death Comes for the Archbishop | Cather, Willa | 1927 |
| HK,BK,MT,WS,NC | Essential Guide to Black Canyon of the Gunnison National Park | Jenkins, John | 2004 |
| HK,BK,WS,NC | San Juan Islands: A Guide to Exploring and Great Outdoors | Wortman, Dave | 2005 |
| HK,MT,NC | Carson-Iceberg Wilderness-A Guide to High Sierra between Yosemite and Tahoe | Schaffer | 1999 |
| HK,NC | Hiking Oregon's Geology, 2nd ed | Bishop | 2004 |
| HK,NC | Walk in the Woods, A; Rediscovering America on the Appalachian Trail | Bryson, Bill | 1998 |
| HK,NC | Nature in the City: Seattle | Dolan & True | 2003 |
| HK,NC | Hiking the Southwest's Geology Four Corners Region | Hopkins | 2002 |
| HK,NC | Hiking the Southwest's Geology Four Corners Region | Hopkins | 2002 |
| HK,NC | Best Wildflower Hikes Washington | Kruckeberg, Art | 2004 |
| HK,NC | Washington South Cascades Volcano Landscapes, A Guide To | Mueller, Ted & Marge | 1995 |
| HK,NC | Walking in the Caucasus: Georgia, Including Flora & Fauna | Nasmyth, Peter | 2006 |
| HK,NC | Tahoe Sierra, 4th ed | Schaffer | 1998 |
| HK,NC,TR | Washington State Parks, 3rd ed | Mueller & Mueller | 2004 |
| MH,NC | Journal of Ramblings through the High Sierra of California by U Excursion Party | LeConte, Joseph | 1875 |
| MH,NC | Denali: A Literary Anthology | Sherwonit, Bill, ed. | 2000 |
| MP,HK,BK,NC | Ireland Hking & Cycling Packet: including The Burren | various | 200x |
| MP,NC | Birder's Guide to Driving Routes in Siskiyou County, California, A 1:253,440 | | 2005 |
| MT,NC | High Himalaya, the | Wolfe, Art | 2001 |
| NC | Selected Weeds of Washington State | | 1996 |
| NC | Mac's Field Guide to Pacific Northwest Trees | | 1994 |
| NC | Mac's Field Guide to Pacific Northwest Wildflowers | | 1991 |
| NC | Mac's Field Guide to Northwest Park and Backyard Birds | | 1990 |
| NC | Mac's Field Guide to Northwest Coastal Water Birds | | 1994 |
| NC | Mac's Field Guide to Northwest Coastal Invertibrates | | 1984 |
| NC | Mac's Field Guide to the San Juan Islands | | 1992 |
| NC | Mac's Field Guide to Mount Rainier National Park: Birds & Mammals | | 1998 |
| NC | Mac's Field Guide to Mount Rainier National Park: Wild Flowers | | 1998 |
| NC | Salmon Nation: People and Fish at the Edge | | 1999 |
| NC | Forest, The | | 1961 |
| NC | Galapagos: The Flow of Wildness 2.Prospect | | 1968 |
| NC | Galapagos: The Flow of Wildness 1: Discovery | | 1968 |
| NC | Mac's Field Guide Various | | 19xx |
| NC | Wupatki Pueblo Trail Guide, Wupatki National Mounument, N Arizona | | 2003 |
| NC | Mac's Field Guide to Olympic National Park Marine Life and Land Mammals | | 2000 |
| NC | Conifers: Panorama Arboretum | | 200x |
| NC | Flowering Shrubs: Panorama Arboretum | | 200x |
| NC | Guide to the Trees: Panorama Arboretum | | 200x |
| NC | Monkey Wrench Gang, the | Abbey, Edward | 1975 |
| NC | San Juan Islands Wildlife | Adams, Evelyn | 1995 |
| NC | Mac's Pocket Guide: Grand Canyon NP Geology | Aitchison | 2006 |
| NC | Glacial Lake Missoula and its Munongous Floods | Alt, David | 2001 |
| NC | Roadside Geology of Washington | Alt, David & Hyndman, Donald | 1984 |
| NC | Taking a Second Look: Communties & Dam Removal | American Rivers | |
| NC | Glossary of Arctic and Subarctic Terms, ADTIC Pub A-105, Sept 1955 | Arctic, Desert, Tropic Info. Center | 1955 |
| NC | Arizona Cactus | Ariz. Renaissance Travelers | 1988 |
| NC | Northwest Trees | Arno, Stephen F. | 1944 |
| NC | Timberline | Arno, Stephen F. | 1984 |
| NC | Northwest Trees Anniversary Edition | Arno, Stephen; Hammerly, Ramona | 2007 |
| NC | Arctic Daughter: A Wilderness Journey | Aspen, Jean | 1988 |
| NC | Northwest Heritage-The Cascade Range | Atkeson, Ray | 1969 |
| NC | Washington | Atkeson, Ray; Gohs, Carl | 1969 |
| NC | Wild Plants of the San Juan Islands - 2nd Ed | Atkinson, Scott & Sharpe, Fred | 1985 |
| NC | Land of Little Rain, The | Austin, Mary | 1903 |
| NC | Arctic National Wildlife Refuge: Seasons of Life and Land | Banerjee, Subhankar, photographer | 2003 |
| NC | Natural Patagonia-Argentina & Chile, Spanish & English | Beccaceci, Marcelo | 1998 |
| NC | Jungle Peace | Beebe, William | 1920 |
| NC | Eat Where You Live: Sustainable Food | Bendrick, Lou | 2008 |
| NC | Northwest Foraging | Benoliel, Doug | 1974 |
| NC | Field Guide to the Hampback Whale | Bernard & Morris | 1993 |
| NC | Field Guide to the Geology of Chiricahua National Monument, SE Arizona | Bezy, John | 1998 |
| NC | Lightly on the Land: The SCA Trail-Building and Maintenance Manual, 2nd ed | Birkby, Robert | 2005 |
| NC | On the Trail of the Ice Age Floods; A Geological Field Guide | Bjornstad, Bruce | 2008 |
| NC | Wildflowers of Mount Rainier | Blackwell | 2000 |
| NC | Watchable Wildflowers: A Columbia Basin Guide, BLM Washington | BLM | 199x |
| NC | Shrubs and Trees of the SW Desert | Bowers, janice | 1993 |
| NC | Trees of North America | Brockman | 1968 |
| NC | Mountain in the Clouds | Brown, Bruce | 82 / |
| NC | Artic Wings, Birds of the Artic National Refuge | Brown, Ed | 2006 |
| NC | Greenland | Bure, Kristjan, ed | old |
| NC | Rocky Mountain Warden | Callum, Frank | 1971 |
| NC | Skyguide, a Field Guide to the Heavens | Chartrand III, Mark R. | 1982 |
| NC | Smithsonian Guides to Natural America,, The Pacific Northwest | Chasan | 1995 |
| NC | Pages of Stone, Geology of W. Nat. Parks & Mon. (1:Rocky Mtns) | Chronic, Halka | 1986 |
| NC | Pages of Stone, Geology of W. Nat. Parks & Mon.(3:Desert SW) | Chronic, Halka | 1986 |
| NC | Pages of Stones, Geology of W. Nat. Parks & Mon. -2:S.N.,Casc. & Pac Co. | Chronic, Halka | 1986 |
| NC | Roadside Geology of Utah | Chronic, Halka | 1990 |
| NC | Pages of Stone, Grand Canyon & Plateau Country Natl Parks & Monuments, 2nd ed | Chronic, Halka & Lucy | 2004 |
| NC | Bogs, Meadows, Marshes & Swamps: A Guide to 25 Wetland Sites of WA ST | Churney/Williams | 1996 |
| NC | Indian Legends of the Pacific Northwest | Clark, Ella E. | 1953 |
| NC | Sharing Nature With Children | Comell, Joseph | 1979 |
| NC | Silent World | Cousteeau | 1953 |
| NC | White Redwoods, The: Ghosts of the Forest | Davis & Derman | 1980 |
| NC | Wake Up and Smell the Planet | Davis; Wroth; ed | 2007 |
| NC | River Out of Eden: A Darwinian View of Life | Dawkins, Richard | 1995 |
| NC | Seashore Plants | Dawson | 1966 |
| NC | Seashore Plants of Northern California | Dawson | 1966 |
| NC | Adventuring in Florida, A Sierra Club Travel Guide | de Hart, Allen | 1995 |
| NC | Practical Geologist, the | Dixon, Dougal | 1992 |
| NC | 100 Roadside Wildflowers of Southwest Uplands (Arizona) | Dodge, Natt | 1967 |
| NC | Tahoma: A Celebration of Mt Rainier- A Mountain Alive | Doughton, Sandi | 1999 |
| NC | Pocket Field Guide to the Plants and Animals of Mount Rainier | Dreimiller, Joe | 1999 |
| NC | Living with Wolves | Dutcher | 2005 |
| NC | Whales and other Marine Mammals of Washington and Oregon | Eder, Tamara | 2001 |
| NC | Good Rain, The | Egan, Timothy | 1990 |
| NC | Green Consurmer, the | Elkington, Hailers, Makower | 1988 |
| NC | Cataclysms on the Columbia | Elliot Allen and Burns, Marjorie | 1986 |
| NC | Desert Life: A Vocabulary | Evans & Garcia | 1998 |
| NC | Geologic Field-Trip Guide to Steens Mountain Loop Road, Harney County, Oregon | Evans, J; Geisler, T | 2001 |
| NC | Going Wild in Washington and Oregon | Ewing, Susan | 1993 |
| NC | Atlas of Wild Places, the; In Search of the Earth's Last Wilderness | Few, Roger | 1994 |
| NC | Peterson's First Guides-Fishes | Filisky, Michael | 1989 |
| NC | 70 Common Cati of the SW | Fischer, Pierre | 1989 |
| NC | Birds of Seattle and Puget Sound | Fisher, Chris C. | 1996 |
| NC | Costa Rica's National Parks & Preserves, A Visitor's Guide, 3rd | Franke, Joseph | 2009 |
| NC | Cascadia Wild. Protecting an International Ecosystem | Friedman & Lindholdt, ed. | 1993 |
| NC | Thirty Years of Chronicling Environmental Writing The West (signed copy) | Fromme, Michael | 1996 |
| NC | Last Redwoods and the Parkland of Redwood Creek, The | Fruge, ed | 1969 |
| NC | Vanishing Halo, Saving the Boreal Forest, 1st Edition | Gawthrop, Daniel | 1999 |
| NC | Stalking the Wild Asparagus, Field Guide Ed | Gibbons, Euell | 1962 |
| NC | Sentinels of the North Pacific - The Story of Pacific Coast Lighthouses & Ligh | Gibbs, James A. | 1955 |
| NC | Mystery Tracks in the Snow | Gilliland | 1990 |
| NC | Dead Reckoning - Confronting the Crisis in Pacific Fisheries | Glavin, Terry | 1996 |
| NC | Field Guide to the Slug, the Western nSociety of Malacologists | Gordon | 1994 |
| NC | Field Guide to the Orca | Gordon & Flaherty | 1990 |
| NC | Preserving Washington Wildlands | Gordon, David George | 1993 |
| NC | Nisqually Watershed (only one) | Gordon, George | 1995 |
| NC | Meandering Mushroom | Graham | 1993 |
| NC | Soft Paths: How to Enjoy the Wilderness Without Harming It (book) | Hampton/Cole | 1988 |
| NC | Islands at the Edge of Time-A Journey to America's Barrier Islands | Hansen, Gunnar | 1993 |
| NC | Whelks to Whales: Coastal Marine Life of the Pacific Northwest | Harbo | 1999 |
| NC | A River Lost: The Life & Death of the Columbia | Harden, Elaine | 1996 |
| NC | Tropical Trees | Hargreaves | old |
| NC | Tropical Trees of the Pacific | Hargreaves | 1970 |
| NC | Columbia Icefield: Solitude of Ice | Harmon/Robinson | 198- |
| NC | Banana Slug | Harper, Alice Bryant | 1988 |
| NC | Easy Field Guide to Rock Art Symbols of the Southwest | Harris, Rick | 1995 |
| NC | Fire & Ice: The Cascade Volcanoes | Harris, Stephen | 1980 |
| NC | Know Your Trees and Shrubs: A Southern Hemishpere Garden Book | Harrison & Harrison | 1965 |
| NC | Denali Road Guide | Heacox | 1990 |
| NC | Audubon Society--Familiar Catic of N America | Heil, Kenneth | 1993 |
| NC | Wildflowers 1-The Cascades | Horn, Elizabeth | 1972 |
| NC | Foraging Along the Pacific Coast, from Mexico to Puget Sound | Howorth, Peter | 1986 |
| NC | How to Build & Finish a Log Cabin | Hunt, W. Ben | 1974 |
| NC | Trees to Know in Oregon, EC 1450 | Jensen, E.C. & Ross, C.R. | 1994 |
| NC | Nahanni, The River Guide | Jowett, Peter | 1998 |
| NC | The New Yorker Sept 27, 1993, Letter from the Amazon: with Spears on all Sides | Kane, Joe | 1993 |
| NC | Alaska's Brook Range | Kauffmann, John M. | 1992 |
| NC | Last Polar Bear, The | Kazlowski, Steven | 2008 |
| NC | Pacific Coast Berry Finder | Keaton, Glenn | 1978 |
| NC | Pacific Coast Fern Finder | Keaton, Glenn | 1981 |
| NC | Hawai'I's Floral Splendor | Kepler | 1997 |
| NC | Wild Edible Plants of the Western United States | Kirk, Donald R. | 1990 |
| NC | Enduring Forests (N.CA, OR, WA, BC, &SE AK) | Kirk, Donald R. | 1996 |
| NC | Walking with Rufus on Seminary Hill | Kiser, Rufus | 1996 |
| NC | North Woods | Knauth, Percy | 1974 |
| NC | Familiar Birds of North America | Knof | 1991 |
| NC | Mount St. Helens, Holocaust, A Diary of Destruction | Koenninger, Tom, ed | 1980 |
| NC | Grand Canyon | Krutch, Joseph | 1989 |
| NC | Assignment: Wildlife | LaBastille, Anne | 1980 |
| NC | Coastal Fishes of the Pacific Northwest | Lamb & Edgell | 1986 |
| NC | Give and Take, How Clinton Admini's Public Lands Offensive Transformed the W | Larmer, Paul, ed | 2004 |
| NC | Mammals of the Northwest | Larrison, Earl | 1976 |
| NC | Zoo That Never Was | Lawrence, RD | 1981 |
| NC | Pacific Coast Bird Finder | Lederer, Roger | 1977 |
| NC | All The Backyard Birds (West) | Lehman, Paul | 1998 |
| NC | Seals & Sea Lions: An Affectionate Portrait | Leon, Vicki & Balthis, Frank | 1988 |
| NC | Sand County Almanac, A | Leopold, Aldo | 1949 |
| NC | Olympic Battleground. The Power Politics of Timber Preservation, 2nd Ed. | Lien, Carstein | 2000 |
| NC | National Audubon Field Guide | Lincoff, Gary | 1995 |
| NC | Aldo Leopold: A Fierce Green Fire - an illustrated biography | Lorbiecki, Marybeth | 1996 |
| NC | Beluga Days: Tracking the Endangered White Whale | Lord, Nancy | 2006 |
| NC | California & Hawaii (Arizona) Audobon Guide to the National Wildlife Refuges | MacArthur, Loren | 2000 |
| NC | New Mexico Wildlife Viewing Guide | MacCarter, Jane Susan | 2000 |
| NC | Save Our Planet | MacEachern, Diane | 1990 |
| NC | Plants of the Pacific Northwest - B.C. Ministry of Forests | MacKinnin, Pojar | 1994 |
| NC | Mac's Field Guide to Acadia N P: Trees & Wildflowers; Birds,Mammals,&MarineLife | Mac's Field Guide | 1999 |
| NC | Mac's Field Guide to Yellowstone & Grand Teton N P: Wildflowers; Trees & Shrubs | Mac's Field Guide | 1999 |
| NC | Mac's Field Guide to Yellowstone & Grand Teton N P: Birds; Mammals | Mac's Field Guide | 1999 |
| NC | Mac's Field Guide to Yosemite NP: Mammals; Birds | Mac's Field Guide | 1999 |
| NC | Mac's Field Guide to Yosemite NP: Trees; Wildflowers | Mac's Field Guide | 1999 |
| NC | Hawaiian Reef Fish, The Identification Book | Mahaney, Case | 1993 |
| NC | Mountain Flowers | Manning, Harvey | 1979 |
| NC | Mountain Flowers of the Cascades and Olympics, 2nd ed | Manning, Spring | 2002 |
| NC | North Cascades Crest: Notes & Images from America's Alps | Martin, James | 1999 |
| NC | Sequoia National Park - a geological album | Mathes, Francois | 1956 |
| NC | Cascade-Olympic Natural History; A Trailside Reference, 2nd ed | Mathews, Daniel | 1999 |
| NC | East of Lo Monthang in the Land of Mustang | Matthiessen, Peter | 1996 |
| NC | Wind Birds, the-Shore Birds of N America-the Curious Naturalist | Matthiessen, Peter | 1994 |
| NC | Ressurection - Glen Canyon and a New Vision for the American West | McGivney, Annette | 2008 |
| NC | Savory Wild Mushroom, The | McKenny, Margaret | 1980 |
| NC | Fieldbook of Pacific Northwest Sea Creatures | McLachlan; Ayres | 1979 |
| NC | Ring of Bright Water | McMaxwell, Gavin | 1961 |
| NC | Rocks Remain, The | McMaxwell, Gavin | 1963 |
| NC | Grand Canyon Place Names | McNamee, Gregory | 1997 |
| NC | Wildlife Stories of Faith McNulty, The | McNulty, Faith | 1980 |
| NC | Washington's Wild Rivers | McNulty, Tim | 1990 |
| NC | Olympic National Park A Natural History, 1st Editon | McNulty, Tim | 1996 |
| NC | Washington's Mount Rainier National Park-a Centennial Celebration | McNulty, Tim; O'Hara, Pat | 1998 |
| NC | Coming into the Country | McPhee, John | 1979 |
| NC | Field Guide to Desert Holes | Merlin | 1999 |
| NC | Impressions of the North Cascades - Essays about a Northwest Landscape | Miles, John, ed | 1996 |
| NC | The MillerPlanisphere Latitude 50 degrees North | Miller | |
| NC | Never Cry Wolf | Mowat, Farley | 1963 |
| NC | A Whale for the Killing | Mowat, Farley | 1974 |
| NC | Studies in the Sierra | Muir, John | 1960 |
| NC | California Spring Wildflowers | Munz, Philip | 1961 |
| NC | Sockeye Salmon, A Pictorial Tribute | Naito, Hiromi | 1995 |
| NC | Wilderness and the American Mind, rev ed | Nash, Roderick | 1979 |
| NC | Gardening with Wildlife | National Wildlife Federation | 1974 |
| NC | Preditors at Risk in th e NW | Nelson, Dan A. | 2000 |
| NC | Field Guide to the Grizzly Bear | Olsen, lance | 1992 |
| NC | Guide to Marine Mammals of Greater Puget Sound | Osborne, Calambokidis, Dorsey | 1988 |
| NC | Pacific Northwest magazine:Mountain Beaver! The Little Beast Beneath Us | Ostrom, Carol | 2009 |
| NC | Smithsonian Guides to Natural America, Southwest, The | Page, Jake | 1995 |
| NC | Columbia, The: Sustaining A Modern Resource | Palmer, Tim | 1997 |
| NC | Northwest Native Plants | Paul | 1996 |
| NC | Through the Volcanoes, a Central American Journey | Paxman, Jeremy | 1987 |
| NC | Sierra Club Guide to the Natural Areas of New England, the | Perry | 1990 |
| NC | Sierra Club Guide to the Natural Areas of Oregon and Washington | Perry & Perry | 1983 |
| NC | Sierra Club Guide to the Natural Areas of California, the | Perry & Perry | 1983 |
| NC | Peterson's First Guides-Birds | Peterson, Roger Tory | 1986 |
| NC | Peterson Field Guides-Western Birds,3rd ed | Peterson, Roger Tory | 1990 |
| NC | Peterson's First Guides-Trees | Petrides, George | 1993 |
| NC | After the Ice Age: The Return of Life to Glaciated North America | Poelou, E.C. | 1991 |
| NC | Peterson's First Guides-Rocks and Minerals | Pough, Frederick | 1991 |
| NC | Peterson Field Guids-Rocks and Minerals,4th ed | Pough, Frederick | 1983 |
| NC | Snoqualmie Pass from Indian Trail to Interstate | Prater, Yvonne | 1981 |
| NC | Mount Rainier, a Decade Volcano GSA Field Trip,chap 20 | Pringle, Pat, ed | 1994 |
| NC | Roadside Geology of Mount Rainier National Park and Vacinity | Pringle, Patrick | 2008 |
| NC | Roadside Geology of Mt. St. Helens/Natl. Vol. Monument | Pringle, Patrick T. | 1993 |
| NC | 30 Simple Energy Conservation Measures | Puget Power | 1990 |
| NC | Flight of the Iguana, The | Quammen, David | 1989 |
| NC | What the River Reveals, Understand and Restoring Healthy Watersheds | Rapp, Valerie | 1997 |
| NC | Cadillac Desert: The American West and it's Disappearing Water | Reisner, Marc | 1993 |
| NC | Northwest Mountain Weather | Renner, Jeff | 2005 |
| NC | Mountain Weather Field Guide | Renner, Jeff | 1999 |
| NC | Lightning Strikes. Staying Safe Under Stormy Skies | Renner, Jeff | 2002 |
| NC | Story of Railroading and Recreation in the North Cascades - Stevens Pass | Roe, JoAnn | 1995 |
| NC | Columbia Highlands: Exploring Washington's Last Frontier | Romano; Johnston | 2007 |
| NC | Stuff: The Secret Lives of Everyday Things | Ruan & Durning | 1997 |
| NC | Pacific Coast Mammals | Russo & Olhausen | 1987 |
| NC | Pacific Intertidal Life | Russo, Olhausen | 1981 |
| NC | Great Northwest Nature Factbook, The, Rev edition | Saling, Ann | 1999 |
| NC | John Muir in Yosemite | Sargent, Shirley | 1971 |
| NC | Galen Clark: Yosemite Guardian | Sargent, Shirley | 1964 |
| NC | Price of Taming a River: Decline of Puget Sound's Duwamish/Green Waterway | Sato, Mike | 1997 |
| NC | Mount Rainier's Mammals | Schamberger, M. L. Phd | 1967 |
| NC | Alaska's Wild Plants: A Guide to Alaska's Edible Harvest - Alaska Pocket Guide | Schofield | 2007 |
| NC | Pregnant Bears & Crawdad Eyes | Schullery, Paul | 1991 |
| NC | Beachcomber's Guide to Seashore Life in the Pacific Northwest | Sept, J. Duane | 1999 |
| NC | Volcano: Mount St. Helens - Before, During, After May 18, 1980 | Shangle, ed | 1996 |
| NC | Glaciers | Sharp, Robert | 1960 |
| NC | 101 Wildflowers of Olympic Park, rev | Sharpe, Grant & Wenonah | 1957 |
| NC | Plants of Waterton-Glacier National Parks | Shaw & On | 1979 |
| NC | Nature of Nature, the-New Essays from America's Finest Writers on Nature | Shore, William, ed | 1994 |
| NC | Clearcut, the Tragedy of Industrial Forestry | Sierra Club | 1993 |
| NC | Wild Alaska: 2nd ed, guide to parks,preserves,wildlife refuges, public lands | Simmerman, Brown | 1999 |
| NC | Common Seashore Life of the Pacific Northwest | Smith, Lynwood | 1962 |
| NC | Smithsonian Guides to Natural America, Pacific | Smithsonian | 1995 |
| NC | Peaks and Valleys | Smythe, F. S. | 1938 |
| NC | Growing Wild Flowers | Sperka, Marie | 1984 |
| NC | 55 Hikes in Cental Washington | Spring, Ira & Harvey Manning | 1990 |
| NC | Volcano, The Eruption of Mount St. Helens | staff of Daily News, Longview etc | 1980 |
| NC | Animal Tracks of the Great Lake States | Stall, Chris | 1989 |
| NC | Animal Tracks of the Mid Atlantic States | Stall, Chris | 1989 |
| NC | Animal Tracks of the Rocky Mountains | Stall, Chris | 1989 |
| NC | Animal Tracks of New England | Stall, Chris | 1989 |
| NC | Animal Tracks of the Southeastern Sates | Stall, Chris | 1989 |
| NC | Animal Tracks of Northern California | Stall, Chris | 1989 |
| NC | Animal Tracks of the Southwest | Stall, Chris | 1990 |
| NC | Animal Tracks of Southern California | Stall, Chris | 1990 |
| NC | Animal Tracks of the Pacific Northwest | Stall, Chris & Karen Pandell | 1981 |
| NC | Oregon Coast Recreational Atlas | Sullivan, Timothy | 1991 |
| NC | Sacred Balance, the, Rediscovering our Place in Nature | Suzuki, David | 1997 |
| NC | Guide to the Geology of Olympic National Park | Tabor, Rowland | 1975 |
| NC | Geology of the North Cascades, A Mountain Mosaic | Tabor, Rowland and Ralph Haugerud | 1999 |
| NC | Rocky Mountain Wildlowers, 3rd ed | Taylor | 2002 |
| NC | Rocky Mountain Wildflowers, 3rd ed | Taylor | 2002 |
| NC | Rocky Mountain Wildflowers | Taylor, Ronald J. | 1986 |
| NC | Journey into Summers | Teale | 1960 |
| NC | Space for Livong - A Novel of the Crand Coulee & Columbia Basin | Thompson, Margaret | 1944 |
| NC | Guide to Washingon Nature Preserves (pamphlet) | Todd, Gordon,ed | 1998 |
| NC | Nisqually National Wildlife Refuge Final Conservation Plan & EIS | U.S. Fish & Wildlife Service | 2004 |
| NC | Mountain Flowers of the Pasayten Wilderness | US Forest Service | 1973 |
| NC | Ferdinand Vandiveer Hayden and the Founding of Yellowstone National Park | USGS | 1980 |
| NC | Grand Canyon of the Colorado, the | Van Dyke, Hohn C. | 1920 |
| NC | Champion Trees of Washington State | Van Pelt, Robert | 1996 |
| NC | Feeding the Winter Birds in the Pacific Northwest | Waldon, Don | 1994 |
| NC | Mima Mounds: Evaluation of Proposed Origins | Washburn, A.L. | 1988 |
| NC | Mountain Photograph | Washburn, Bradford | 1999 |
| NC | Grow Your Own Native Landscape | Washington State University | 1997 |
| NC | Desert Tree Finder | Watts & Watts | 1974 |
| NC | Pacific Coast Tree Finder | Watts Tom | 1973 |
| NC | Rocky Mountain Tree Finder | Watts Tom | 1972 |
| NC | Visitor's Guide to the Birds of the Central National Parks | Wauer, Roland | 1994 |
| NC | Visitor's Gide to the Birds of the Rocky Mountain National Parks | Wauer, Roland | 1993 |
| NC | Fishing in the Olympixcs | Webster, E. B. | 1923 |
| NC | Easy Field Guide to Southwestern Petroglyphs | Welsh, Elizabeth | 1995 |
| NC | Defending Wild Washington; A Citizen's Action Guide | Whitesell, Edward, Ed | 2004 |
| NC | A Field Guide to the Grand Canyon, 2nd ed | Whitney, Stephen | 1996 |
| NC | Field Guide t othe Cascades & Olympics, 2nd ed | Whitney, Stephen & Sandelin | 2004 |
| NC | Field Guide to the Cascades and Olympics, A | Whitney, Stephen R | 1983 |
| NC | Mac's Pocket Guide: Grand Canyon NP Birds & Mammals | Whitney, Stephen, Hart | 2006 |
| NC | Mac's Pocket Guide: Grand Canyon NP Flower, Trees, & Cacti | Whitney, Stephen; Hart | 2006 |
| NC | Mac's Pocket Guide Southwest Park & Garden Birds | Whitney, Stephen; Hart | 2006 |
| NC | Mac's Pocket Guide Southwest Things That Bite & Sting | Whitney, Stephen; Hart | 2006 |
| NC | Mac's Pocket Guide Glacier National Park Birds & Mammals | Whitney, Stephen; Hart | 2006 |
| NC | Mac's Pocket Guide Isle Royale National Park | Whitney, Stephen; Hart | 2006 |
| NC | Mac's Pocket Guide Glacier National Park Flowers & Trees | Whitney, Stephen; Hart | 2006 |
| NC | John Muir: His Life and Other Writings | Wicks; Muir | 2007 |
| NC | Celebrating the American Earth: A Tribute to Ansel Adams | Wilderness Society, the | 1990 |
| NC | Bridge of the Gods, Mountains of Fire: A Return to the Columbia Gorge | Williams, Chuck | 1986 |
| NC | Restless Northwest, the; A Geologic Story | Williams, Hill | 2002 |
| NC | Mountain That was "God", Rainier/Tahoma | Williams, John H. | 1910 |
| NC | Cascades, the America Wilderness | Williams, Richard | 1974 |
| NC | People Within A Landscape: A Collection of Images of Nepal | Willison/Bourke | 1992 |
| NC | Peterson's First Guides-Catepillars | Wright, Amy Bartlett | 1993 |
| NC | Trees of Washington | WSU | 1971 |
| NC | Marine Wildlife from Puget Sound Through the Inside Passage | Yates, Steve | 1998 |
| NC | Alaska Days with John Muir | Young, Samuel | 1990 |
| NC | Mount St. Helens: Volcano - A Rage that Filled the Sky (newspaper article) | Zahler | 1980 |
| NC,CD | Owl and the Woodpecker, The ; Calls and Drumming Sound Recording | Bannick, Paul | 2008 |
| NC,CD | Birdsongs of the Pacific Northwest: CD plus Fieldguide | Stewart, Whitney, Hart | 2006 |
| NC,CH | Klamath Basin Birdlife Coloring Book, California | Christy, M Susan | |
| NC,CH | Let's Discover Capitol Reef, Arches, and Canyonlands National Parks | Diamond, Lynell | 199- |
| NC,CH | Let's Discover The Petrified Forest National Park | Diamond, Lynnell | 199- |
| NC,DV | Mystery of the Megaflood: Examining the World's Most Catastrophic Flood | | 2005 |
| NC,DV | Below the Clouds: Rainier Impressioins | Chrestensen | 2006 |
| NC,FI,CH | Morpha - A Rainforest Story | Tennyson, Michael; Yoswa | 2002 |
| NC,HK | Organ Pipe Cactus National Park brocures & guides | | 2001 |
| NC,HK | Walking the Big Wild from Yellowstone to the Yukon on the Grizzly Bear'sTrail | Heuer, Karsten | 2004 |
| NC,HK | Geology of Olympic National Park: Hiking & Motorist Guide | Tabor, Rowland | 1987 |
| NC,HK | Don't Get Bitten: The Dangers of Things that Bite or Sting | Tilton, Buck, M.S. | 2003 |
| NC,HK | Don't Get Eaten: The Dangers of Things that Charge or Attack | Tilton, Buck, M.S. | 2003 |
| NC,MH | Being Caribou | Heuer, Karsten | 2005 |
| NC,MH | Savages | Kane, Joe | 1996 |
| NC,MH | One Man's Wilderness - An Alaskan Odyssey | Keith, Sam; Proenneke, Richard | 1999 |
| NC,MH,DV | Alone in the Wilderness | | 2003 |
| NC,MP | Great Washington State Birding Trail, Cascade Loop, the | | 2002 |
| NC,MP | Great Washington State Birding Trail, Coulee Corridor Scenic Byway, the | | 2003 |
| NC,MP | Great Washington State Birding Trail, Olympic Loop, the | | 2006 |
| NC,MP | America's Redrock Wilderness, Protecting a National Treasure | Swanson, Frederick | 199x |
| NC,MP | WhitePass Expansion info | various | 2004 |
| NC,PH | Yellowstone to Yukon: Freedom to Roam A Photographic Journey | Schulz | 2005 |
| NC,TR | Gardeners on the Go! 20 Terrific tours @ Puget Sound & Seattle | Feeney, Stephanie | 1998 |
| NC,TR | Lost World of the Anasazi, The: Exploring the Mysteries of Chaco Canyon | Lourie, Peter | 2003 |
| NC,TR | African Madness | Shoumatoff, Alex | 1988 |
| NC,TR | Galapagos Islands, 2nd Ed. Rev | Stephenson, Marylee | 2005 |
| NC,TR | Chaco Handbook, The: An Encyclopedic Guide | Vivian, Gwinn; Hilpert, Bruce | 2002 |
| TR,HK,BK,NC | Guide to Northeast Oregon | Dreisbach, Robert | 1995 |
| TR,NC | Gardeners on the Go! 24 tours around Puget Sound | Feeney | 1998 |
| TR,NC | National Parks of Northern Mexico | Fisher, Richard D. | 1994 |
| TR,NC | Moloka'I | Spalding, Philip III | 1984 |
| VI,NC | Great Floods, The | Washington State U | |