What is this? A flat map showing the elevation for one hill.

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Presentation transcript:

What is this? A flat map showing the elevation for one hill. Topographic Maps What is this? A flat map showing the elevation for one hill.

Topographic Maps Show the difference in elevation between any two points. They can show… Hills, valleys, mountains, etc. Water features like lakes, ponds, etc. Cultural features that are man-made like buildings.

Key Words Contour lines —An imaginary line that connects points of the same elevation on the Earth’s surface. The number tells the distance above sea level. It is greater than 500 ft. above sea level here. 400 450 500

Contour lines never cross! 400 450 500

Key Words Contour Intervals —Shows the difference in elevation between two contour lines 400 450 500 There is 50 ft of difference in the elevation of these two lines. This is the contour interval.

Contour lines are widely spaced on gentle slopes. 400 450 500 This is a gentle slope because the contour lines are far apart.

Contour lines are closely spaced are steep slopes. 400 450 500 This is a steep slope because the contour lines are close together.

The top of the hill is higher than the closest contour line. 400 450 500 This is higher than 500 ft.