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The Greater Yellowstone Ecosystem (GYE) is one of the last remaining large, nearly intact ecosystems in the northern temperate zone of the Earth. [1] It is located within the northern Rocky Mountains , in areas of northwestern Wyoming , southwestern Montana , and eastern Idaho , and is about 22 million acres (89,000 km 2 ). [ 2 ]
The Greater Yellowstone Ecosystem is a uniquely large contiguous ecosystem of the northern Rocky Mountains, within areas of Montana, Wyoming, and Idaho in the northwestern United States. It includes the Yellowstone Caldera region, and is protected within 2 U.S. National Parks, 5 U.S. National Forests, and 10 Wilderness Areas.
Large Mammals of Yellowstone and Grand Teton National Parks : How to Know Them, Where to See Them. Yellowstone Association for Natural Science History. Wilkinson, Todd (1992). Yellowstone Wildlife A Watcher's Guide. Minocqua, WI: NorthWord Press. ISBN 1-55971-140-X. Streubel, Donald P. (1995). Small Mammals of the Yellowstone Ecosystem. Boulder ...
A bull elk grazes in Gibbon Meadows in the west-central portion of the park. An elk grazes with a bison in the park. There are at least 67 species of mammals known to live within Yellowstone National Park, a 2,219,791 acres (898,318 ha) [1] protected area in the Rocky Mountains of Wyoming, Montana, and Idaho.
Yellowstone National Park is a national park of the United States located in the northwest corner of Wyoming and extending into Montana and Idaho.It was established by the 42nd U.S. Congress through the Yellowstone National Park Protection Act and signed into law by President Ulysses S. Grant on March 1, 1872.
The history of wolves in Yellowstone includes the extirpation, absence and reintroduction of wild populations of the gray wolf (Canis lupus) to Yellowstone National Park and the Greater Yellowstone Ecosystem. When the park was created in 1872, wolf populations were already in decline in Montana, Wyoming and Idaho.
On May 22, 1902 it became the Yellowstone Forest Reserve with lands of 6,580,920 acres (26,632.0 km 2). [1] The reserve was first suggested by General Philip Sheridan in 1882 after a visit to Yellowstone National Park. Sheridan recommended that the park be expanded 40 miles (64 km) to the east and 10 miles (16 km) to the south.
The Yellowstone bison herd was the last free-ranging bison herd in the United States being the only place where bison were not extirpated. [8] The Yellowstone bison herd is descended from a remnant population of 23 individual bison that survived the mass slaughter of the 19th century in the Pelican Valley of Yellowstone Park.