The same contour appears on either sides of a ridge or valley, for the highest horizontal plane that interests the ridge must cut it on both sides.
The same contour appears on either sides of a ridge or valley, for the highest horizontal plane that interests the ridge must cut it on both sides. Correct Answer True
The same contour appears on either sides of a ridge or valley, for the highest horizontal plane that interests the ridge must cut it on both sides. The same is true in case of a lower horizontal plane that cuts a valley.
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Feb 20, 2025