"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.