Which feature would you infer from contour lines that are drawn as dashed lines?

Which feature would you infer from contour lines that are drawn as dashed lines?

• A. Supplementary Contour Lines
• B. Index Contour Lines
• C. Intermediate Contour Lines
• D. Contour Lines

Answer: (A)

Dashed contour lines are supplementary contours. They are added to provide extra elevation detail between the regular contour lines without introducing a new contour interval. The dashed style distinguishes them from the standard solid lines, signaling that these lines aren’t new elevation values on their own but additional lines to better depict terrain shape. You’ll still read elevations using the labeled index lines and the usual interval, but the dashed lines fill in gaps to show subtle changes in slope, especially on maps where spacing would otherwise miss detail.

Dashed contour lines are supplementary contours. They are added to provide extra elevation detail between the regular contour lines without introducing a new contour interval. The dashed style distinguishes them from the standard solid lines, signaling that these lines aren’t new elevation values on their own but additional lines to better depict terrain shape. You’ll still read elevations using the labeled index lines and the usual interval, but the dashed lines fill in gaps to show subtle changes in slope, especially on maps where spacing would otherwise miss detail.