Topographic Maps
contour line
A line on a topographic map that connects points of equal elevation
topographic map
A map that shows natural features like rivers, lakes, mountains and man made features like cities, roads, bridges.
A compass rose
Shows directions on a map (N, S, E, W)
Solve for the gradient if Point A and Point B are both at a contour elevation of 900 feet with a measured distance of 10 feet.
The answer is 0.
Solve for the maximum elevation if the top contour line is 90 M and the interval moves by 20 M.
The answer is 109 M.
Solve for the gradient if Point E is at a contour elevation of 80 M and Point P is at a contour elevation of 120 M. The measured distance is 2 M.
The answer is 20 M.
Point C is at an elevation of 1500 M and Point D is at an elevation of 1000 M. The measured distance between the two points is 2 M. Solve for the gradient.
The answer is 250 M.
What is the minimum elevation of a diagram that moves from 60, 50, and finally 40 feet?
The answer is 31 feet.
Solve for the minimum elevation if the lowest line is at 90 and the interval moves by 20 M.
The answer is 71 M.
The diagram shows 700 to 800 with 4 contour lines in between...what is the contour interval?
The contour interval is 20.
Using the diagram I can tell the stream is flowing in this direction at point 4.
The diagram is showing southeast at point 4.
If you are at a contour interval of 800 feet and cross over a lake to climb up a hill that is 1600 feet what will the profile view look like on a map?
The image would start at 800, sink lower due to water, and continue to then rise up.
steep slope
When the contour lines on a topographical map are close together
color on topographic map of any building
black represents this
gentle slope
shown by widely spaced contour lines
topographic map profile
shows a side view of a area through the topographic map