Yellowstone National Park is one of the United States' most storied national parks. Created in 1872, the park's breathtaking geothermal wonders and diverse ecosystems draw millions of visitors to Wyoming, Montana, and Idaho every year. This intermediate-level survey, filled with vibrant photos and factual text, examines the must-see features of the park and its wildlife, from the iconic Old Faithful geyser to the elusive gray wolves that roam its...