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1.4

Contour interval

The elevation from one contour line to the next

Contour line

Connects points of equal elevation on a topographic map by using isolines

Topgraphic map

shows surface features of an area

USGS

The government agancy responsible for making topographic maps in the U.S.

Uses of a topographic map

planning a hike, bike ride, building a house etc.

Elevation

Height above sea level

Relief

Difference in elevation (from the highest in an area to the lowest)

Landform

Feature of topography (Mountains, valleys, hills,etc)

Topography

The shape of the land

3 major types of landforms

Plains, Plateau, Mountains

Plain

Low elevation (flat land) and low relief

Coastal plain

A plain that lies along the coast (by the sea)

Interior plain

A plain that is not near the coast

Plateau

High elevation and low relief (flat land)

Mountain

High elevation and high relief

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