By Kurt F. Johnson. An essential nature guide to Yellowstone and Grand Teton National Parks, written by a local wildlife biologist and eco-tour guide. More than 1,200 color photographs with concise descriptions reveal the richness of the Greater Yellowstone Ecosystem. Identifies the region's rocks, minerals, geysers, waterfalls, mushrooms, trees, wildflowers, insects, amphibians, reptiles, fish, birds, mammals, tracks and scat, and the night sky. Includes 75 natural features with locator maps, and 650 species. 2013. Softcover. 248 pages. 5.5" x 8.5"