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100 Greatest Discoveries: Yellowstone's Volcano

The majority of Yellowstone Park is on top of an underground volcano that is 40 miles wide. Learn more about the underground volcano on The Science Channel's "100 Greatest Discvoeries."


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Geography of the USA: The Mountain Region (1:39)

The Mountain Region is made up of: Idaho, Nevada, Utah, Montana, Colorado and Wyoming.

The Mountain States: Modern Mining Techniques (0:59)

Today, the Mountain States lead the country in coal production, and the region will soon become the leading producer of natural gas.

The Mountain States: Rivers Flowing East (2:51)

In the Mountain States, most of the major rivers flow east from the Continental Divide. The Missouri River runs from the Rockies to the Mississippi River.

The Mountain States: Rivers Flowing West (2:20)

The main rivers flowing west from the Continental Divide are the Snake River and Colorado River. Water from the Colorado River is converted into electricity at the Hoover Dam.

The Mountain States: The Great Basin (3:04)

Some of the geographic features of the Great Basin and plateau areas of the Mountain States region include the Great Salt Lake and natural bridges sculpted out of solid rock.

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100 Greatest Discoveries: Yellowstone's Volcano (0:49)

The majority of Yellowstone Park is on top of an underground volcano that is 40 miles wide. Learn more about the underground volcano on The Science Channel's "100 Greatest Discvoeries."

Planet's Best: Yellowstone National Park (2:59)

On Animal Planet's "Planet's Best: North American Wildlife Encounters," get a brief overview of Yellowstone National Park and the amazing wildlife there.

Planet's Best: Wildlife at Yellowstone National Park (2:55)

On Animal Planet's "Planet's Best: North American Wildlife Encounters," get to know the wildlife that live in Yellowstone National Park. Wolves, elk and bison live together in a magnificent ecosystem.

US Geography: The States of the Southeast Region (2:42)

This clip describes the composition of Southeast region and gives descriptions of Southeast states.

Introduction to U.S. Geography 4 (0:45)

Learn more about American geography in this video.

US Geography: Introduction to U.S. Geography 6 (0:46)

In the United States, the land is as diverse as the people who live there.

US Geography: The States of the Pacific West Region (1:14)

All the states of the Pacific West region touch the Pacific Ocean.

US Geography: Introduction to US Geography 5 (0:45)

The regions of the United States are pieces of living history.

US Geography: Whaling in New England (1:02)

New England's whaling industry helped provide oil for the nation's lanterns.

US Geography: Physical Features of the New England (1:23)

New England's rugged coast is one of the region's most important physical features.