Although individual nations designate their own national parks differently, there is a common idea: the conservation of 'wild nature' for posterity and as a symbol of national pride. Yellowstone National Park spans an area of 3,468.4 square miles (8,983 kmHundreds of species of mammals, birds, fish, reptiles, and amphibians have been documented, including several that are either The human history of the park began at least 11,000 years ago when The first detailed expedition to the Yellowstone area was the A Montana writer and lawyer named Cornelius Hedges, who had been a member of the Washburn expedition, proposed that the region should be set aside and protected as a national park; he wrote detailed articles about his observations for the In 1871, eleven years after his failed first effort, Hayden, while not the only person to have thought of creating a park in the region, was its first and most enthusiastic advocate.Hayden and his 1871 party recognized Yellowstone as a priceless treasure that would become rarer with time.

In 1873, Congress authorized and funded a survey to find a AN ACT to set apart a certain tract of land lying near the headwaters of the Yellowstone River as a public park. Horse travel on roads was eventually prohibited.In 1963, after several years of public controversy regarding the forced reduction of the elk population in Yellowstone, United States Secretary of the Interior The expansive cultural history of the park has been documented by the 1,000 Justin Ferrell explores three moral sensibilities that motivated activists in dealing with Yellowstone.

The amount of ash and gases released into the atmosphere probably caused significant impacts to world weather patterns and led to the A subsequent caldera-forming eruption occurred about 160,000 years ago.
Since the mid-1960s, at least 2 million tourists have visited the park almost every year.Park service roads lead to major features; however, road reconstruction has produced temporary road closures. C'est notamment le cas au Les autorités chargées de la préservation de ces réserves sensibilisent la population ; des guides, des gardes forestiers, des vétérinaires et des chercheurs expliquent aux habitants et aux touristes les avantages de préserver ces espèces et les risques que les braconniers encourent s'ils tuent ces animaux ou essaient de les vendre. Some of the locals feared that the regional economy would be unable to thrive if there remained strict federal prohibitions against resource development or settlement within park boundaries and local entrepreneurs advocated reducing the size of the park so that After the park's official formation, Nathaniel Langford was appointed as the park's first superintendent in 1872 by Secretary of Interior Grinnell documented the poaching of buffalo, deer, elk, and antelope for hides. The Yellowstone Park bison herd reached a peak in 2005 with 4,900 animals. First came the utilitarian vision of maximum Yellowstone National Park was heavily impacted by the Approximately 96 percent of the land area of Yellowstone National Park is located within the state of Wyoming.Yellowstone National Park has one of the world's largest Three deep canyons are located in the park, cut through the The volcanism of Yellowstone is believed to be linked to the somewhat older volcanism of Snake River plain.
Un parc national est une portion de territoire dans laquelle la faune, la flore et le milieu naturel en général sont protégés des activités humaines. The time between the last three cataclysmic eruptions in the Yellowstone area has ranged from 600,000 to 800,000 years, but the small number of such climactic eruptions cannot be used to make an accurate prediction for future volcanic events.In 2003, changes at the Norris Geyser Basin resulted in the temporary closure of some trails in the basin. Under a half-dozen tribes had made seasonal use of the Yellowstone area- the only year-round residents were small bands of Ongoing poaching and destruction of natural resources continued unabated until the U.S. Army arrived at By 1915, 1,000 automobiles per year were entering the park, resulting in conflicts with horses and horse-drawn transportation. En effet, tous les parcs nationaux et, de façon générale, les Même si on tente de l'éviter, de nombreux parcs nationaux sont Certains parcs sont partiellement exploités ou convoités par des paysans ou des entreprises (avec des impacts en termes de Certains parcs sont étroitement surveillés, d'autres sont si vastes que cela est impossible. Generally, most exotic species are controlled by pulling the plants out of the soil or by spraying, both of which are time-consuming and expensive.Bison once numbered between 30 and 60 million individuals throughout North America, and Yellowstone remains one of their last strongholds.

There was considerable local opposition to the Yellowstone National Park during its early years.

This creates a collapsed depression, called a caldera, and releases vast amounts of volcanic material, usually through fissures that ring the caldera. He wished for others to see and experience it as well. It formed the relatively small caldera that contains the Each eruption is part of an eruptive cycle that climaxes with the partial collapse of the roof of the volcano's partially emptied magma chamber.

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