Topic: Yellowstone National Park
General Purpose: To give information concerning Yellowstone National Park
Specific Purpose: To inform an audience about the history and facts of Yellowstone National Park
Thesis Sentence: Yellowstone National Park is America’s oldest and eighth largest national park.
INTRODUCTION Yellowstone National Park is located primarily in the northwestern region of the state of Wyoming. The outskirts of the park extend to parts of southern Montana and Eastern Idaho. It is one of America’s largest, oldest, and most well known national parks.
DISCUSSION I. Thousands of years ago, numerous volcanic eruptions shaped the landscape of Yellowstone. A large mass of molten rock (magma) that lies beneath the park fuels the geothermal activities seen there today. A. 1803—Obtained as part of the Louisiana Purchase
B. 1872—American government establishes Yellowstone as a national park C. Named for the yellow rocks that lie along part of the Yellowstone river
D. 1886—U.S. Army takes control of the park to protect wildlife from hunters and trappers
E. 1966—Congress establishes National Park Service that manages and protects the park today, instead of the army
F. 1988—Wildfires are allowed to burn naturally through the park because of the wildlife policy and since then things have started to grow again II. The regeneration has led to the many features of Yellowstone that attract numerous visitors. A. Geothermal features
1. Hot springs are pools of hot water that find their way to the surface o the earth and form small ponds. When it rains or snows the precipitation seeps down about 10,000 feet into the earth and is heated to 400° Fahrenheit. Due to the pressure of the rocks above the water it stays in a liquid state. It loses density but gains buoyancy which allows it to rise to the surface of the earth again. The rising water carries silica as it climbs to the