A contour interval in the surveying is the vertical distance or the difference in the elevation between the two contour lines in a topographical map.
Contour Map
Home/Contour MapDo you need to remove the ads? Join now!
Discy Latest Articles
Contour Lines and Its Types, Characteristics and Uses in Surveying
In cartography, contour lines are an imaginary line of a terrain that joints the point of equal elevation above a given level, such as mean sea level or benchmark.