Contour Map Interpretation and Analysis

The video tutorial provides a comprehensive guide on reading contour maps, also known as topographic maps. It explains how to interpret contour intervals, measure distances, identify streams and flow directions, and analyze hilltops and elevations. The tutorial also covers slope steepness and walking preferences, practical map questions, and potential future changes in topography due to weathering and erosion.

What is the primary purpose of a contour map?

• To map out road networks

• To indicate weather patterns

• To display changes in elevation

• To show political boundaries

What does a contour interval of 10 feet mean?

• The map is updated every 10 years

• Each line is 10 feet apart on the map

• The map is 10 feet wide

• Each line represents a 10-foot increase or decrease in elevation

How can you use a contour map to measure distances?

• By estimating based on the map's color

• By counting the number of contour lines

• By using a ruler to measure the map's width

• By using the scale provided on the map

What do the 'V' shapes in contour lines indicate?

• The direction of a stream's source

• The direction of river flow

• The location of a mountain peak

• The presence of a valley

What does it mean when contour lines are very close together?

• The area is flat

• The slope is gentle

• The slope is steep

• The area is underwater

If a hiker is at the highest point on a hill, what can be said about their elevation?

• It is above 560 feet

• It is below 550 feet

• It is between 551 and 559 feet

• It is exactly 550 feet

How do you determine the difference in elevation between two points on a contour map?

• By measuring the distance between the points

• By adding the contour intervals

• By subtracting the elevations of the two points

• By counting the number of contour lines between them

What changes might you expect in a contour map after 15 years?

• The contour lines will become more detailed

• The map will show new roads and buildings

• The peaks may become more rounded due to erosion

• The map will remain unchanged

What is the lowest elevation indicated on the map?

• 500 feet

• 460 feet

• 550 feet

• 480 feet

What is the contour interval of the map discussed in the video?

• 20 feet

• 10 feet

• 15 feet

• 5 feet