its called an index or index conotour line and is every fitth line on a topographic map.
The spaces between the topographic lines are called contour intervals. They represent the difference in elevation between each line on a topographic map.
The change in elevation from one contour line to the next is called the contour interval. It represents the difference in elevation between two adjacent contour lines on a topographic map.
latitude and longitude
The number 0 on a topographic map usually represents the contour line for sea level, also known as mean sea level. This line shows where the elevation of the land is equal to the water level of the ocean.
The change in the elevation between isolines is called a contour line. Contour lines on a topographical map resemble a volcano.
The spaces between the topographic lines are called contour intervals. They represent the difference in elevation between each line on a topographic map.
A contour line that is bold and labeled is called an index contour line. These lines help to easily identify specific elevations on a topographic map.
topographic elevation
lines of equal elevation are called contour lines.
The "neat" line.
Closely spaced contour line on a topographic map shows that the land is steep.
It depends how steep the mountain or hill is, usually the contour lines are bolded and is every fifth line. hope this helped
The change in elevation from one contour line to the next is called the contour interval. It represents the difference in elevation between two adjacent contour lines on a topographic map.
A contour is a line that joins points of equal elevation.
A contour.
Contour lines show elevation.
the difference in elevation represented by each contour line on a topographic map