How Do You Read Elevation On A Map?

How do you read a topographic survey map?

Tightly grouped contour lines might indicate a cliff.

Look at the numbers on index lines to see if elevation is increasing or decreasing.

Practice reading contour lines.

Sit down with a topo map of a familiar area and see if you can pick out terrain features by looking at the contour lines..

What are map key symbols?

Symbols are small pictures that stand for different features on a map. A symbol is often drawn to look like what it represents. For example, a triangular shape is often used to denote a mountain.

What does pink mean on a topographic map?

– Brown – contour lines (elevation information) – Black – man-made/cultural features (buildings, place names, boundary lines, roads, etc.) – Red – Highways and major roads, Township/Range/Section information. – Pink – urban areas. – Purple – reflect revisions to a map but is no longer used on maps in production.

What does an elevation map look like?

The distinctive characteristic of a topographic map is the use of elevation contour lines to show the shape of the Earth’s surface. Elevation contours are imaginary lines connecting points having the same elevation on the surface of the land above or below a reference surface, which is usually mean sea level.

How do you read a hill on a map?

Remember contour numbering reads up hill – in other words the top of the number is uphill and the bottom is downhill. Also remember the closer contour lines are together, the steeper the slope.

What do the numbers mean on a topographic map?

Contour elevation numbers indicate the direction of elevation by always reading (pointing) uphill. What is scale? Maps are made to scale. In each case, the scale represents the ratio of a distance on the map to the actual distance on the ground.

What do you call an elevation map?

In modern mapping, a topographic map or topographic sheet is a type of map characterized by large-scale detail and quantitative representation of relief, usually using contour lines (connecting points of equal elevation), but historically using a variety of methods.

What is the highest possible elevation?

The maximum possible elevation for a hill is one less than the value that would have designated the next contour line. In other words, the highest possible elevation of the hill is just below the value of the next contour line, even though that line is not shown. On a steep slope, the contour lines are close together.

What are the five map symbols?

Maps contain lots of information. Most maps will have the five following things: a Title, a Legend, a Grid, a Compass Rose to indicate direction, and a Scale. The Title tells you what is being represented on the map (i.e. Austin, Tx).

What do colors mean on a topographic map?

The colors of the lines usually indicate similar classes of information: topographic contours (brown); lakes, streams, irrigation ditches, and other hydrographic features (blue); land grids and important roads (red); and other roads and trails, railroads, boundaries, and other cultural features (black).

How do you read map skills?

Step 3 – Put The Map Into PracticePoint Your Map North. To point your map north, place your compass flat on your map, pointing towards the top, and rotate yourself until the compass’ needle points north. … Find Your Location On The Map. … Reading Contour Lines. … Identify Features Of The Landscape. … Thumbing.