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a natural feature of Earth's surface such as a valley, plain, hill, or mountain

Two of the largest mountian ranges in the US

Rocky Mountians and Appalachian Mountians

Appalachian Mountians

these cover much of the eastern United States

Rocky Mountians

these cover much of the western United States

Interior Plains

region that extends across most of the center of the United States

Rio Grande

What is the name of the river that forms a border between Mexico and the US?


an area of grassland with scattered trees and bushes

the largest fresh water lakes.

The Great Lakes are

All of the Great Lakes

Superior, Michigan, Huron, Erie, and Ontario


the height of land above sea level

More Earthquakes

Places closer to the equator experience


means "foot of the mountain" (region)

fall line

a place where the elevation of the land drops sharply, causing rivers to form waterfalls or rapids.

drainage basin

The land drained by a river system.

mountian range

a series of connected mountains.


the kind of weather a place has most often, year after year


a stream or river that flows into a larger stream or river

sea level

The level of the surface of the ocean.


a long period with little or no rain

The Appalachian Mountians are

the source for many rivers in the eastern US

The four main vegetation regions in US

forest, grassland, desert, and tundra

The major bodies of water in the US


factors that affect the climate of a place

distance from the equator, the distance of oceans and other large bodies of water, ocean currents, the location on the continent, and elevation


a broad area of high, mostly flat land

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