Grand Canyon of the Yellowstone, Yellowstone National Park, WY
The Grand Canyon of the Yellowstone, Yellowstone National Park, Wyoming. About 600,000 years ago, several volcanic eruptions in Yellowstone emptied a magma chamber whose roof collapsed, forming a giant pit that filled with lava. Some lava flows blocked waterways, which subsequently formed lakes that overflowed and eroded the area around them, a process that created the canyon. At one point, glaciers filled the canyon, and the water from their eventual melt off deepened the canyon even more.
In 1872, Yellowstone became the world’s first national park. The park preserves and protects a stunning variety of flora and fauna, including large mammals such as elk, wolves, bison, moose, and grizzly bears. The park’s most common ecosystem is the subalpine forest. It is famous for its hot springs and geysers. Thousands come to see Old Faithful every year. Yellowstone Lake is located over the Yellowstone Caldera, an enormous supervolcano, and the park’s geothermal features are powered by volcanic activity. From 11,000 years ago to around 200 years ago, the park was home to several different groups of Native Americans.