Presentation on theme: "Yellowstone National Park Zespół Szkół w Firleju Gimnazjum."— Presentation transcript:
Yellowstone National Park Zespół Szkół w Firleju Gimnazjum
National Park Definition National park is a natural area designed (by the government) to protect the ecological integrity of one or more ecosystems for present and future generations.
Yellowstone National Park was established by the U. S. Congress and signed into law by President Ulysses S. Grant on March 1, Yellowstone is the oldest and best known national park in the United States. Ulysses S. Grant
Yellowstone National Park is located in the western United States. It spans 3,472 square miles (8,987 square km). Ninety-six percent of the park is located in the state of Wyoming, another three percent is in Montana, and one percent is in Idaho.
This park features the largest and most spectacular thermal area on earth: over 10,000 geysers, hot springs, mud pots, colorful travertine terraces. LAND FORMATIONS
Old Faithful is one of the Parks most well known geysers in the park Hot Springs are pools of hot water, the source of their heat is the magma under the earths surface. Mud pots
Travertine terraces at Mammoth Hot Springs
Some other wonders of this national park include lakes, waterfalls, petrified trees, Obsidian Cliff the Grand Canyon of the Yellowstone River. LAND FORMATIONS
Yellowstone Lake Obsidian Cliff is an exposed area where lava flow erupted 180 thousand years ago. Obsydian is a volcanic glass.