Hotels in Yellowstone National Park, United States
Yellowstone National Park spans Wyoming, Montana, and Idaho, with cold winters averaging 15°F (-9°C) and mild summers around 75°F (24°C). It's famous for half the world's geysers, like Old Faithful erupting every 90 minutes, and the Grand Prismatic Spring's rainbow colors. In summer, you can hike the 7-mile Fairy Falls Trail for a direct view of the spring, while winter snowshoeing at Mammoth Hot Springs lets you spot bison steaming in the cold.