Contour Maps

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Contour Maps
Topographic Maps
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Contour Maps show the elevation of the land.
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Things you find on a Contour or Topo Map

• Contour Lines that show elevation
• Compass directions to show N, S, E, W
• A scale for distances
• Latitude and Longitude
• A Key to show different features and locations
• Colors
• Blue Water White Bedrock
• Brown Contour Lines Red Roads
• Green Vegetation Black Names
• Title and Location of the area the map is from
• Magnetic Declination

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Things to know about Contour Maps

• Contour Interval means what every line is
  worth.
• The rule of the Contour Vs
• Streams and rivers flow opposite to the point
  of the V that is
• formed when a contour line crosses them.
• Close contour lines means that there is a steep
  slope.
• Contour lines that are far apart mean that the
  land is flatter.
• The Gradient Formula is used to calculate the
  slope.
• Gradient means slope.
• Bulls eyes represent hills or mountains.
• Hachured lines on bulls eyes mean depressions or
  valleys.
• Each line represents a different elevation in
  feet or meters.
• Places on the same contour line are at the same
  elevation.
• A Profile is a side view or real representation
  of the topography
• of an area.

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Ossining Quadrangle Questions

• What is the elevation of Point A?
• What is the elevation of Point B?
• What direction does Stream X flow?
• What is the gradient between A and B?
• 5. Below stream Y, what direction does the
  Taconic State Parkway run?
• What side of Briarcliff High School has the
  highest gradient?
• What Quadrant is the depression located in?

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Red River Map
Elevation is in feet Distance is in miles
0 l
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OCEAN
Scale
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Red River Map

• What is the elevation of Point A?
• What is the elevation of Point B?
• What is the elevation of Point C?
• What is the gradient between X and Y?
• What direction is Red River flowing?
• What side of Hill D has the steepest/highest
  gradient?