The elevation of unlabeled contour
lines can be determined using the contour interval
at the bottom of the map. The contour interval
tells the vertical distance between neighboring
lines. By counting the number of contours from
a labeled line, and multiplying by the contour
interval, you can calculate the elevation of any
contour line.
For points located between contour
lines, you can estimate the elevation by examining
the distance to the two closest contours.
4. What is the elevation of the points
marked A, B, and C?
