Yellowstone may be world-famous now, but back in the early 19th century, the first American to discover it was written off a as a madman. John Colter was a former explorer with Lewis and Clark, and the world couldn't believe that the hot springs and geysers he claimed to have seen on his way back from the expedition were real. It actually took 50 years for an organized expedition to fully explore the area, and they were certainly stunned to find that the legends of fire and brimstone were true. In 1872, it was protected as the America's first National Park. Every inch of this natural wonderland is worth exploring, from its geysers and hot springs to its canyons and forests.
The best time of year to visit Yellowstone National Park: There's really no bad time to visit Yellowstone. During the winter, some roads and lodges close, but the park is no less beautiful covered in snow, and it's nice to kind of have the place to yourself. Spring and fall mean beautiful colors, and summer is, of course, always incredibly popular. But, if you plan to visit between May and September, make sure to plan and book everything well in advance.