"Wilderness Basics: Hiking, Backpacking, Paddling, Mountain Biking."
The San Diego Chapter of the Sierra Club provides advice and instructions about clothing, equipment, wilderness navigation, animal encounters, and more in this guidebook.

"100 Hikes in the Central Oregon Cascades" by William L. Sullivan
This is the classic guidebook for the Mt. Jefferson and Three Sisters areas.  Sullivan has also written guides for the Oregon Coast, Northwest Oregon, Southern Oregon, and Eastern Oregon.

"120 Hikes on the Oregon Coast" by Bonnie Henderson
Ocean lovers can discover new beach walks and coastal hikes in Henderson's field guide.
"Waterfall Lover's Guide: Pacific Northwest" by Gregory A. Plumb
Plumb gives maps and directions for over 600 waterfalls in this handy book. The waterfalls are rated by magnitude and aesthetic value.

"Oregon's Best Wildflower Hikes: Northwest Region" by George Wuerthner's
Hikers can locate colorful alpine meadows by using this book. Elizabeth L. Horn is the author of the southwest Oregon edition.

"Kissing the Trail: Northwest & Central Oregon"  by John Zilly
Zilly describes 77 mountain bike routes in his guide. He includes information about terrain, duration, and skill level for each route.

"Scenic Driving Oregon" by Tom Barr
If you want to see the Oregon landscape from your car, this book provides descriptions and maps for 45 routes throughout Oregon.

"Paddling Oregon"  by Robb Keller
Kayakers and rafters can learn about 100 rivers.  Maps, flow data, access and hazard information are given for each stream.