S. destination, the second best family summer vacation, and third best relaxing U. S. getaway. Indeed, combined with its fabulous geothermal treats, its beautiful landscape, its vast network of hiking trails, and, of course, its diversity of wildlife, and American's adventurers find Yellowstone National
Park is an affordable American safari in their own backyard. View slideshow:Wildlife Highlights of Yellowstone National Park Yellowstone National Park, a vast area that holds the largest concentration of wildlife in the lower 48 states, holds top ranking On U. S. News and World Report's list of Best
Adventure Vacations in the USA. Photo credit: Dr. Joseph T. McGinn Summer is the high season for Yellowstone National Park, but its beauty and attractions exist in all four seasons.