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Rocky Mountains

3,000 mile mountain range stretching from New Mexico to Alaska

Mount McKinley

Highest point in North America at 20,320 feet.

Appalachian Mountains

North America's oldest mountains. They stretch from Alabama to Quebec.

Canadian Shield

A giant core of rock centered on the Hudson Bay

Fall line

A boundary that marks the place where the higher land of the Piedmont drops to the lower Atlantic Coastal Plain.


a high point or ridge that determines the direction in which rivers flow.


the source of a river


smaller rivers or streams that connect with larger rivers

Mississippi River

One of North America's largest rivers - it flows from Minnesota to the Gulf of Mexico

Great Lakes

Glacial lakes in the northern central area of the United States

fossil fuels

Coal, petroleum, and natural gas. These are nonrenewable resources used for energy


places for catching fish and other sea animals. The Grand Banks is one of the world's richest.


fish farming


Wetlands and swamps located in Florida that shelter a variety of vegetation and wildlife


ocean storms hundreds of miles wide with winds of 74 miles per hour or more

Death Valley

The lowest and hottest place in the United States.


Mediterranean scrub vegetation found in southern California.

Great Plains

the center of the North American continent - it has a humid continental climate with very cold winters and hot summers.


naturally treeless expanses of grasses, spread across the Great Plains


Violent spring and summer thunderstorms that often can spawn tornadoes.


the elevation above which trees cannot grow, area in which only lichens and mosses can grow


A warm, dry wind that blows in spring down the eastern slopes of the Rockies, melting the snow


Winter storms that include winds over 35 miles per hour, heavy snow, and low visibility

Great Salt Lake

Naturally salty lake in Utah because there is no output for the water.

Lake Okeechobee

Large lake located in Florida.

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