Topographic Maps

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Topographic Maps

• Mr. King

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Hints to work with topographic maps.

• Small lines perpendicular to contour lines are
  called hachure lines.
• Hachure lines point downhill.
• Contour lines never cross.
• V shaped contour lines point up stream.
• A cross section line (X,Y) crosses contour lines
  to help determine cross section of land
• Contour lines explain elevation above sea level.

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10
20
30
40
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10
20
X
30
40
50
Y
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10
20
X
30
40
50
Cross Section
Y
10
Contour Lines
10
20
X
30
40
50
Cross Section
Y
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
20
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
30
20
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
40
30
20
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
50
40
30
20
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
60
50
40
30
20
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
60
50
40
30
20
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
60
50
40
30
20
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
60
50
40
30
20
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
60
50
40
30
20
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
60
50
40
30
20
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
60
50
40
30
20
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
60
50
40
30
20
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
60
50
40
30
20
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
60
50
40
30
20
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
60
50
40
30
20
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
60
50
40
30
20
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
60
50
40
30
20
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
60
50
40
30
20
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
60
50
40
30
20
10
0
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Contour Lines
10
20
X
30
40
50
Cross Section
Y
60
50
40
30
20
10
0
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