Which term describes short lines that run parallel to the dip of the slope, with heavier lines for steeper slopes?

Which term describes short lines that run parallel to the dip of the slope, with heavier lines for steeper slopes?

• A. Contour
• B. Hachures
• C. Halftone
• D. Tone

Answer: (B)

Lines that communicate terrain by showing the slope direction use a method where short strokes run along the slope, and you accent steeper areas by making those strokes heavier. This description matches hachures, which are the short lines drawn parallel to the dip of the slope and intensified for steeper terrain. Contour lines are continuous curves representing equal elevation and don’t follow the slope direction, while halftone and tone rely on shading or tonal patterns rather than line-based slope indicators.

Lines that communicate terrain by showing the slope direction use a method where short strokes run along the slope, and you accent steeper areas by making those strokes heavier. This description matches hachures, which are the short lines drawn parallel to the dip of the slope and intensified for steeper terrain. Contour lines are continuous curves representing equal elevation and don’t follow the slope direction, while halftone and tone rely on shading or tonal patterns rather than line-based slope indicators.