yellowstone

yellowstone

Yellowstone National Park is located in the northwestern USA. It straddles 3 states : Idaho, Montana and Wyoming, but most of the park is northwest of Wyoming.

Yellowstone National Park is located in the northwestern USA. It straddles 3 states: Idaho, Montana, and Wyoming, but most of the park is northwest of Wyoming. ( Federal Lands surround Yellowstone, and Grand Teton National Park is a few kilometers southern). Yellowstone Park covers 8,983 km², measures 102 km from north to south, and 87 km from east to west. It is located on a high tray.

You said history ?

human presence ?

personalities ?

which ressources ?

natural disasters ?

Traces of human presence dating back at least 11 000 years have been found in the park.

In 1806, John Colter was the first man of European origin to visit the site. Many expeditions were conducted thereafter.

the Park was officially created on march 1 1872 by president Ulysse Grant to protect it. Yellowstone is the oldest national park in the world.

The Amerindians used the Yellowstone obsidian deposits, a very hard stone, to make sharp tools and weapons.

In 1959, a powerful earthquake affected the west of the Yellowstone at Hebgen Lake and damaged the roads and facilities of the national park.

President Theodore Roosevelt visited Yellowstone in 1903 and laid the cornerstone of the "Roosevelt Arch" at the north entrance to the park. several roads are set up to be able to drive.

an internationally recognized park

a national park ? Why ?

The name comes from the color of the rocks of the Great Yellowstone Canyon that was formed during the last glaciations before being heavily eroded by the Yellowstone River. The color of the stones comes from the hydrothermal alteration of the iron they contain and not from the sulfur, which is present. The site contains the largest volcanic system in North America. It belongs to the category of "supervolcanoes" and its eruptions far exceed those of "classic" volcanos.