Yellowstone National Park Professional Review and Guide
"America’s first national park is also one of its largest, the most extensive in the 48 contiguous states and the only one that extends over three states. Although parts of the park are in Montana and Idaho, most of the park’s area and all of its major attractions are in Wyoming. Yellowstone Park is a broad volcanic plateau that generally lies between 7,000 and 8,500 feet above sea level, with peaks that rise 2,000-4,000 feet above the plateau. That dry geologic description hardly begins to do the park justice, but no words really can. Probably the most famous single feature of Yellowstone is Old Faithful.
As beautiful as it is, by the time you have finished seeing Yellowstone you will rank it as one of the lesser attractions. Yellowstone is a microcosm of America’s natural beauty, its variety is unsurpassed by any other national park. Besides the geysers, geothermal activity has produced gurgling mudpots and colorful algae-containing waters that simply defy description. Then, too, there are elegant mountains, deep canyons, high rushing waterfalls and rivers, forests and lakes. This eTrail explains in detail how to tour the park. In addition to a park map the details include driving tours, outdoor recreation, accommodations, campgrounds, dining, and more."