Question

What is difference between knoll and form line in Contour map?

Answer 1

hyy..

☆A Knoll is a low isolated hill which is shown on acontour map with a ring contour pattern.
●In topographic maps every 5th contour line is drawn in bold print or wider than other contours. Such lines are called index contour lines.
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hope it helps⭐

Answer 2

Answer:

Knoll vs. depression: for knolls, contour lines form concentric circles, and there is lower ground all around, whereas depressions have closed contour lines with tick marks pointing toward the low ground.