bund(外滩)
http://www.bundpic.com/
An Index Contour
The Relationship between the relief of an area and the contour interval on a map of the area is A contour line
A contour line below sea level is called a bathytherm.
A line that follows the edge of form is a contour line. This type of art is called contour drawing. Doing it without looking at the paper is called blind contour drawing.
Contour interval
It is contour interval.
contour interval
longitude
Contour.
The difference in elevation between one contour line and the next is called relief. Hope this helped. ;)
The scale of contour lines on a topographic (terrain) map is called the "contour interval".
it is a contour line of elevation Control index contour, or just index contour