Yellowstone National Park

March 1, 1872 – Yellowstone National Park is established as the world’s first national park.

The park is located primarily in the U.S. state of Wyoming, although it also extends into Montana and Idaho. It was established by the U.S. Congress and signed into law by President Ulysses S. Grant on March 1, 1872.  Yellowstone, the first National Park in the U.S. and widely held to be the first national park in the world, is known for its wildlife and its many geothermal features, especially Old Faithful Geyser, one of the most popular features in the park.  It has many types of ecosystems, but the subalpine forest is the most abundant. It is part of the South Central Rockies forests ecoregion.

Yellowstone National Park spans an area of 3,468.4 square miles (8,983 km2), comprising lakes, canyons, rivers and mountain ranges.  Yellowstone Lake is one of the largest high-elevation lakes in North America and is centered over the Yellowstone Caldera, the largest supervolcano on the continent. The caldera is considered an active volcano. It has erupted with tremendous force several times in the last two million years.  Half of the world’s geothermal features are in Yellowstone, fueled by this ongoing volcanism.  Lava flows and rocks from volcanic eruptions cover most of the land area of Yellowstone. The park is the centerpiece of the Greater Yellowstone Ecosystem, the largest remaining nearly-intact ecosystem in the Earth’s northern temperate zone.

In 1934, the United States issued a 5-cent stamp commemorating the Old Faithful geyser at Yellowstone National Park (Scott #744).  A $17.50 Express Mail stamp was issued by the U.S. Postal Service in January 2009 showing the Old Faithful geyser and a buffalo.

Yellowstone National Park - Old Faithful - U.S.                  Old Faithful Express Mail Stamp - U.S.

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