ntry Field Guide provides a comprehensive listing of all of the 300+ trails within Yellowstone National Park, to include dozens of trails that have long since been abandoned by the park maintenance crews. Discussions include trail, camp, and bear safety; Yellowstone weather (including an entire chapter on winter hiking and skiing); information on selecting hiking clothing and equipment suitable for Yellowstone's unique climate; boating, fishing, and hunting regulations; backcountry use regulations; camping permits; hiking etiquette; and much, much more. Each trail includes a detailed analysis regarding difficulty, hiking conditions, distances, campsite features (including detailed analyses of all of the park's almost 300 backcountry campsites), elevation details, and a list of notable points of reference that can be found along the trail (over 2,100 in total), each with its GPS coordinates. The book also includes very detailed appendices with information on over 150 park lakes, 265 streams and rivers, 255 waterfalls, a comprehensive list of the park's 101 thermal fields, details on 145 of the highest mountain peaks, and so much more.