# What is the standard interval between contour lines on a map?

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Asked By: Pearline Friesen
Date created: Sun, Jun 27, 2021 10:00 PM
Date updated: Thu, Jun 23, 2022 12:44 PM

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## Top best answers to the question «What is the standard interval between contour lines on a map»

The elevation difference or vertical distance between two adjacent contour lines would be 20 meters (100 : 5 = 20). Therefore the contour interval is 20 meters.

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Those who are looking for an answer to the question «What is the standard interval between contour lines on a map?» often ask the following questions:

### 💻 What is the contour interval of the map?

• In every map, on the right-hand bottom side, the contour interval is specified. When the contour interval is not specified in the map, it can be calculated as explained in the following sections. The commonly used contour interval is 20 feet for a 1:24,000 map scale.

### 💻 What is the contour interval of the topographic map?

• A contour line is a line drawn on a topographic map to indicate ground elevation or depression. A contour interval is the vertical distance or difference in elevation between contour lines. Index contours are bold or thicker lines that appear at every fifth contour line.

### 💻 What is the scale and contour interval of the map?

The contour interval on a topographic map is the vertical distance between one contour line and the next. At the beginning of the war some of the only maps available of France had been produced in the 1880s at a scale of 1:80,000 and had hachures instead of contour lines to indicate changes in elevation.

8 other answers

What is the standard interval between contour lines on a map? The elevation difference or vertical distance between two adjacent contour lines would be 20 meters (100 : 5 = 20). Therefore the contour interval is 20 meters.

A contour line is a line drawn on a topographic map to indicate ground elevation or depression. A contour interval is the vertical distance or difference in elevation between contour lines. Index contours are bold or thicker lines that appear at every fifth contour line.

The vertical difference between any two consecutive contours is remembered as the contour interval. For instance, if the different consecutive contours are 100 m, 98 m, 96 m, etc., then the contour interval is 2m. This interval depends upon, the nature of the ground, the scale of the map, and the objective of the survey.

In every map, on the right-hand bottom side, the contour interval is specified. When the contour interval is not specified in the map, it can be calculated as explained in the following sections. The commonly used contour interval is 20 feet for a 1:24,000 map scale. Factors Affecting the Selection of Contour Interval

A contour is a line drawn on a map that joins points of equal height above sea level. For 1:25 000 scale maps the interval between contours is usually 5 metres, although in mountainous regions it may be 10 metres.

The space between contour lines on a topographical map is a contour interval. The contour interval is an even space that represents an increase in elevation. For instance, if the map uses a 20-foot interval, there are contour lines at zero, 20, 40, 60, 80 and 100 feet.

A contour is a line drawn on a map that joins points of equal height above sea level. For 1:25 000 scale maps the interval between contours is usually 5 metres, although in mountainous regions it may be 10 metres. How contour lines show a pair of small hills.

You can find the contour interval in the map key, usually located underneath the scale of the map at the bottom center. To understand all map symbols, see the US Gov document. Example: The contour interval is 50 feet according to the map key. You want to find out the elevation of an intermediate line 3 lines above an index line labeled 1,000.

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We've handpicked 23 related questions for you, similar to «What is the standard interval between contour lines on a map?» so you can surely find the answer!

What do contour lines and intervals mean on a map?
• 5.5 Contour Lines and Intervals. A contour line is a line drawn on a topographic map to indicate ground elevation or depression. A contour interval is the vertical distance or difference in elevation between contour lines.
What do the lines on a contour map tell us?
• Index lines are the thickest contour lines and are usually labeled with a number at one point along the line. This tells you the elevation above sea level. Intermediate lines are the thinner, more common, lines between the index lines. They usually don't have a number label… Supplementary lines appear as dotted lines, indicating flatter terrain.
What does merged contour lines mean on a topographic map?

This preview shows page 1 - 2 out of 2 pages. (or contour lines) reflect the uphill and downhill directions from a given contour line… Contour lines never cross. Contour lines merge to form a single line only at a vertical cliff (very rare).

Can you export contour lines from google maps?
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How are contour lines used in topographic maps?
• Topographic maps are also known as topo maps or contour maps and record and display the contours of the Earth. These 2D maps depict the three-dimensional land surface by using contour lines. Contour lines represent the land’s elevation above sea level. The closer together contour lines are, the steeper the rise and fall of the land.
How to read contour lines on google maps?

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What are the different types of contour lines on a map?
• Isopleth. Isopleth on a contour map connects the places having the same value of some measurable quantity of geographical or meteorological phenomena.
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What are the three types of contour lines on a map?
• Index lines are the thickest contour lines and are usually labeled with a number at one point along the line…
• Intermediate lines are the thinner, more common, lines between the index lines.
How are the contour lines on a topographic map represented?
• A topographic map illustrates the topography, or the shape of the land, at the surface of the Earth. The topography is represented by contour lines, which are imaginary lines. Every point on a particular contour line is at the same elevation. These lines are generally relative to mean sea level.
How do you read contour lines on a topographic map?
1. Index lines are the thickest contour lines and are usually labeled with a number at one point along the line…
2. Intermediate lines are the thinner, more common, lines between the index lines…
3. Supplementary lines appear as dotted lines, indicating flatter terrain.
How do you use contour lines on a topographic map?
• Use the thicker contour lines to determine the elevation. Contour lines represent paths or segments of the Earth. Topographic maps are covered in contour lines. Some contour lines are thicker, known as indexed contour lines.
What are contour maps?
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• The process. Contour maps are a way to depict functions with a two-dimensional input and a one-dimensional output.
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What do contour maps indicate?
• A contour map, sometimes called a topographic map, is a representation of a three-dimensional feature using contour lines on a flat surface. The map shows a bird's-eye view and allows people to visualize the hills, valleys, and slopes that are being mapped.
What is a contour map?

A contour map also contains index contours to make it easier to interpret the map. The index contour is a thicker contour line that is labeled in several spots with the value of the line. For instance, there might be unlabeled contour lines for every 10 feet (3 m) in elevation, but every 50 feet (15 m) could be a thicker line with the elevation labeled.

What is the distance between grid lines on a military t map?

Grid squares are one kilometre apart and just under one and half kilometres diagonally across the grid square.

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How contour maps work?
• Contour lines connect places of equal altitude Contour lines depict various landforms on a map By “reading” the contour lines we can determine what the terrain in an area looks like.
What are contour maps use to identify?
• Contour maps are extremely useful for various engineering works: Civil engineer studies the contours and finds out the nature of the ground to identify. Suitable site for the project works to be taken up. By drawing the section in the plan, it is possible to find out profile of the ground along that line… Intervisibility of any two points can be found by drawing profile of the ground along that line. More items...
What are the uses of contour maps?

#### Uses of Contour Maps

• The suitable site can be selected for construction activities.
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What is a contour map used for?

Earth's surface has many different kinds of landforms that vary widely in height and elevation. Contour maps show the elevations of these surface features, which allows you to look at a two-dimensional map to visualize the Earth in three dimensions.

What are the 5 rules of contour maps?

Rule 1 - every point of a contour line has the same elevation. Rule 2 - contour lines separate uphill from downhill. Rule 3 - contour lines do not touch or cross each other except at a cliff. Rule 4 - every 5th contour line is darker in color.

Where are contour maps used?

Use contour lines to determine elevations of mountains and flat areas. The closer together the lines are, the steeper the slope. Contour elevation numbers indicate the direction of elevation by always reading (pointing) uphill.

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