Fly Fisher's
Guide To Washington: by Greg Thomas
This is the most comprehensive and up to date Washington Fly Fishing guide available. This book is broken into six sections covering all the important river, tributary streams, spring creeks and stillwaters. Also includes maps, hatch charts, river mileage, access points and camping info. For more info on this book, cast here!
Price:
29.95 (soft cover) 
Washington Blue-Ribbon Fly Fishing Guide:
by
John Shewey
From the high plains of the east to the rain forest of the coast, Washington state features excellent fly fishing. Shewey's beautiful color book features the best stream, river, lake and reservoir opportunities for trout, steelhead, and salmon. Color plates of the most productive flies included as well as hatch timing. This beautiful work enables you to fly fish year -round, confident that your are fishing the correct water with the correct techniques and flies. Color map of the state with locations as included. 96 pages.
Price:
$24.95 (Soft Back)
Hatch Guide For The Lower Deschutes River:
by Jim Schollmeyer
Deschutes:
by Dave Hughes