The symbol for contour lines on a map is a series of equally spaced brown lines that connect points of equal elevation. These lines represent changes in elevation and help visualize the shape and relief of the land.
As two contour line are of different heights, it would be impossible for two contour lines to cross. But, the problem is when it comes to printing map details.If two contour lines cross (touch) it means that they are both at the same height. This can happen on a cliff or steep sided mountain, when the height is so close vertically, that it is easier to show a blank area with a symbol for a cliff or steep mountainside. The symbol used depends on what is used by the producer/printer of the map. The symbol for cliffs should be shown on the map's legend printed on most maps.
The main topographic map rules include contour lines never crossing, contour lines close together represent steep terrain, contour lines spread out represent flat terrain, and elevation is indicated by the contour lines.
The land is steep if the contour lines are close together
The closer the contour lines, the steeper is the slope.
indicated with different kind of contour numbers , which are showed in brown curved lines
Mountains are represented as triangles on map
The darker contour lines on map are called index contour lines. Numbers that indicate elevations are often written on these lines.
Hachured contour lines are contour lines with ticks pointing downslope that indicate a depression on a topographic map.
Index contour lines are thicker and usually have their elevation labeled. They help users quickly identify key elevations on a topographic map. In contrast, regular contour lines show the shape and elevation of the land but do not have specific labels.
The difference in elevation between two contour lines that are side by side is the contour interval. The contour interval is the vertical distance between two adjacent contour lines on a topographic map.
The definition of a contour interval is the difference in elevation between two consecutive lines.
As two contour line are of different heights, it would be impossible for two contour lines to cross. But, the problem is when it comes to printing map details.If two contour lines cross (touch) it means that they are both at the same height. This can happen on a cliff or steep sided mountain, when the height is so close vertically, that it is easier to show a blank area with a symbol for a cliff or steep mountainside. The symbol used depends on what is used by the producer/printer of the map. The symbol for cliffs should be shown on the map's legend printed on most maps.
The main topographic map rules include contour lines never crossing, contour lines close together represent steep terrain, contour lines spread out represent flat terrain, and elevation is indicated by the contour lines.
The closer the contour lines, the steeper is the slope.
The land is steep if the contour lines are close together
On a topographic map, contour lines that are closer together indicate a steeper slope.
The name for the elevation difference between adjacent contour lines is the contour interval.