The Pacific Northwest is one of the best places to find mushrooms -- they are both abundant and spectacularly diverse. Yet until now, there has been no mushroom guide that focuses on the region. This compact, beautifully illustrated guide presents descriptions and photographs of 460 of the region's most conspicuous, distinctive, and ecologically important mushrooms. The geographic range covered by the book includes Oregon, Washington, southern British Columbia, Idaho, and westernmost Montana, with an emphasis on the heart of mushroom country: the low- to mid-elevation forest habitats of western Oregon and Washington. In addition to profiles on individual species, Mushrooms of the Pacific Northwest also includes a general discussion and definition of fungi; information on where to find mushrooms and guidelines on collecting them; an overview of fungus ecology; and a discussion on mushroom poisoning and how to avoid it.