Yellowstone National Park
Yellowstone National Park, located in the northwestern corner of Wyoming, was the world's first ever National Park when it was established in 1872.
The park is most famous as being the home of Old Faithful, the huge volcanic geyser that spurts thousands of litres of boiling water up to 56m in the air at semi-regular intervals of around 90 minutes throughout the day - this spectacular natural display is one of the most predictable geothermal events on the planet. As well as Old Faithful, Yellowstone contains an astonishing half of the world's geothermal features, and the highest density of geysers, hot springs, fumeroles and mud pots to be found anywhere - this is because the entire area sits atop the Yellowstone Caldera, the world's largest supervolcano which has erupted with ferocious force three times in the last two million years.
The Yellowstone region is also the largest nearly-intact ecosystem in the Earth's northern temperate zone, contains vast areas of subalpine forests and grasslands, and is home to hundreds of species of mammals, birds, fish and reptiles. As we explore the park there is an excellent chance to see moose, bison, elk and grizzly bears!
One of the most popular National Parks in the USA, Yellowstone has attracted at least two million visitors every year since the 1960s. Amongst the many activities available here are scenic drives through the mountains to the incredible geysers and waterfalls, and to explore the many trekking trails that weave through the spectacular forests.