Use the internet and/or other reference materials to write a 300-word essay on the U. S. National Park system. Select a park that you would like to visit. Find out how tourism has affected it. Your essay is to include: a brief history of the National Park system in the U. S.; a list of five national parks and their locations; an explanation of how tourism has affected one national park.

Yellowstone National Park

Yellowstone National Park is one of the largest and oldest national parks in American history. Yellowstone was the first park to be protected by private investment on March 1, 1872, and the first to be put under the jurisdiction of the National Park Service in 1918, no doubt due to its unique and inspiring landscape and geothermal features. In fact, Yellowstone National Park is home to half of the world's total hydrothermal features. These awesome attractions draw an incredible amount of visitors, an average of two to three million each year, to Yellowstone's immense landscape. The park has a total size of 28,125 square miles, is found in three distinct states, and is considered to be one of the largest ... show more content ...

This large amount of people has prompted legislative action to clearly define the park's borders in 1929, and has also inspired park management programs to protect the area's native wolf and grizzly bear population. Tourism to the area has also prompted Yellowstone's Lake Trout problem, believed to be the product of visitors' introduction of this unnative species to the Yellowstone Lake and River. The exotic lake trout has few natural predators in the Yellowstone area, and the expansion of a lake trout population in this area is likely to lead in an abrupt decline oft the favorable native cutthroat trout population as it has in other western lakes. This poses some serious problems for Yellowstone waterways as the cutthroat trout is known as a major food source for 42 species of mammals and birds.

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