2. Yellowstone National Park (Wyoming, Montana, Idaho)

Comprising the states of Wyoming, Montana, and Idaho, Yellowstone National Park is not only known for its varied animals and unspoiled scenery but also for its remarkable geologic structures. Originally designated as the first national park in the United States and generally regarded as the first national park worldwide, Yellowstone is a geological paradise that enthrals guests with its unique characteristics.
Often referred to as a supervolcano, the Yellowstone Caldera is among the most recognisable geologic structure in the park. Over millions of years, this great volcanic feature has shaped the terrain of the park. The many geysers, hot springs, and mud pots strewn around the park point to an active geothermal hotspot. Old Faithful, a geyser distinguished by consistent and predictable outbursts, is the most well-known of these geothermal landforms.
Yellowstone's geothermal activity results from a hotspot under the park created by a plume of molten rock erupting from deep under the Earth. For millions of years, this hotspot has driven volcanic activity that has sculpted the terrain with great power. About 640,000 years ago, the most recent of these eruptions created the Yellowstone Caldera and swept volcanic ash over most of North America.
Apart from its geothermal aspects, Yellowstone boasts a varied spectrum of geological structures including mountain ranges, waterfalls, and canyons. Especially remarkable is the Grand Canyon of the Yellowstone, with its arresting yellow and red rock walls. The park is hotspot for biodiversity since its varied geology offers a home for a great range of plant and animal species.
Yellowstone's rich cultural legacy balances its natural marvels. Native American tribes have lived in the area for thousands of years; their customs and legends are closely related to the surroundings. Yellowstone is still a site of scientific inquiry and discovery today as well as a destination visited by millions of people looking to take in its unspoiled beauty.