Yellowstone National Park
Established on March 1, 1872, Yellowstone National Park is the first and oldest national park in the world. Preserved within Yellowstone are Old Faithful Geyser and some 10,000 hot springs and geysers, the majority of the planet's total. These geothermal wonders are evidence of one of the world's largest active volcanoes; its last eruption created a crater or caldera that spans almost half of the park. An outstanding mountain wildland with clean water and air, Yellowstone is home of the grizzly bear and wolf, and free-ranging herds of bison and elk. It is the core of the Greater Yellowstone Ecosystem, one of the largest intact temperate zone ecosystems remaining on the planet. The human history of the park dates back 12,000 years. The events of the last 130 years of park history are reflected in the historic structures and sites associated with various periods of park administration and visitor facilities development.
Grand Teton National Park
Towering more than a mile above the valley of Jackson Hole, the Grand Teton rises to 13,770 feet. Twelve Teton peaks reach above 12,000 feet and support a dozen mountain glaciers. The west side of the range slopes gently, showing the angle of tilt of the Earth's crust. The Teton Range is the youngest range in the Rockies and displays some of North America's oldest rocks.
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