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A line with teeth pointing into the excavation.
Also known as: Excavation mark, Kirido mark
Denotes ground cut away below the surrounding level on a Japanese topographic map.
Marks ground cut away below the surrounding level on a GSI topographic sheet.
Contexts: Maps
Reverses the embankment's teeth, so the two symbols together tell a reader whether the ground beside a road or railway was raised or lowered to carry it.
Contexts: Maps
A crest line with short teeth running inward and downward towards the cut, the reverse of the embankment.
The embankment mark is this one reversed: the teeth point outward and down from the crest instead of into the cut.
Built-up ground against cut ground — the two ways a road or railway is brought to a level, and the legend draws them as mirror images on purpose.