"An essential companion for the amateur tree fan and a valuable source of information for the professional." -- Jerry Franklin, world-renowned forest ecologist and professor emeritus, College of the Environment, University of Washington Northwest Trees offers an exceptional blend of expertise and visual artistry. Covering Washington, Oregon, southern British Columbia, southwestern Alberta, most of Idaho and Montana, and the greater Yellowstone National Park area of northwestern Wyoming, Stephen Arno and Ramona Hammerly identify and illustrate more than sixty species of indigenous northwestern trees by shape, size, needles, leaves, cones, and seeds. This essential guide describes the most recognizable characteristics of each featured species and recounts the tree’s ecology and human history. With more than 160 accurate, beautifully detailed illustrations, this handy field guide is the ultimate reference for trees in this region. The artistry matches the outstanding details for this useful field guide that helps the viewer to identify the trees by their specific features including shapes, size, needles, cones, and seeds. For those venturing into the northwest forest, this is the guide. ― Portland Book Review Stephen F. Arno holds a PhD in forestry and plant science and is retired from a career as a research forester with the US Forest Service. Since 1973, he has authored or co-authored six books about forests and trees, including two Mountaineers Books titles, Northwest Trees and Timberline . Ramona P. Hammerly is a native of the Puget Sound region. She illustrated the original edition of Northwest Trees in 1977 and also provided new illustrations for the 2007 anniversary edition.