contour maps show the following: the elevation of the land above sea level. “a bird’s eye view!
TRANSCRIPT
![Page 1: Contour maps show the following: The elevation of the land above sea level. “A bird’s eye view!](https://reader035.vdocuments.mx/reader035/viewer/2022062304/56649dc65503460f94ab9cab/html5/thumbnails/1.jpg)
TOPOGRAPHIC MAP: KEY CONCEPTS
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TOPOGRAPHIC MAP: KEY CONCEPTS
Contour maps show the following:
•The elevation of the land above sea level.
“A bird’s eye view!
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RULES OF CONTOUR LINES
The connect points that are at the same elevation
They never cross or touch
They are imaginary lines
They always connect and form a circle
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PARTS OF A TOPOGRAPHIC MAP
BENCHMARK:
A benchmark is a place on a map where exact elevation is known. It is marked BM on a map.
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PARTS OF A TOPOGRAPHIC MAP
MAP SCALE
A map scale shows the distance on a map in relation to Earth.
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PARTS OF A TOPOGRAPHIC MAP
MAP LEGEND
A map legend explains the symbols used on a map.
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OTHER KEY CONCEPTS
CONTOUR INTERVAL
A contour interval is the difference in elevation between two contour lines.
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OTHER KEY CONCEPTS
When lines are close together, they represent a steep slope.
When lines are spread apart, they represent a gradual slope.
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WHAT DO THEY MEAN?
Dark Contour Lines:
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WHAT DO THEY MEAN?
Hachure Lines:
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WHAT DO THEY MEAN?
Blue Lines/Shapes:
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WHAT DO THEY MEAN?
Brown Lines:
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WHAT DO THEY MEAN?
Black Lines/Shapes:
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WHAT DO THEY MEAN?
Green:
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WHAT DO THEY MEAN?
Red
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DID YOU KNOW?
Contour lines that cross water form a “V” that points UPSTREAM!