What do the colors represent on a topographic map?

What do the colors represent 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).

What are the main colours used in topographical maps and what do they indicate?

Green: All wooded/forested areas, scattered trees and scrubs. Brown: Contour lines, their numbering, stony waste, sand features. Blue: All water bodies, where they contain water. Red: Grid lines and their numbering, roads, cart tracks, settlements, huts and other buildings.

What do colors mean on a map?

Physical maps use color most dramatically to show changes in elevation. A palette of greens often displays elevations. Dark green usually represents low-lying land, with lighter shades of green used for higher elevations. Green-gray, red, blue-gray, or some other color is used for elevations below sea level.

What does blue colour on a map indicates?

Topographic maps use green to denote vegetation such as woods, while blue is used to denote water features like lakes, swamps, rivers, and drainage.

What are the 5 features of a map?

5 Basic Parts of Any Map

• Map Title or Heading. The title, also called the heading, of a map is typically found at the top of the map.
• Map Key or Legend. All the map symbols are defined in the map key, or map legend.
• Scale Indicator.
• Grid.
• Compass Rose or North Arrow.

What do the colors on a topographic map mean?

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).

What does a dashed line on a topographic map represent?

Supplemental Contour: A dotted or dashed line that represents half the interval between the other contour lines. Supplemental contours are used to produce a more complete picture of relief in a relatively flat area, particularly in flat areas. What does pink represent on a topographic map?

What are the purple symbols on a map?

Currently, purple is not used in our revision program, but purple features are still present on many existing maps. Various point symbols are used to depict features such as buildings, campgrounds, springs, water tanks, mines, survey control points, and wells. Names of places and features are shown in a color cor- responding to the type of feature.

What does a red line on a map mean?

What does a red line on a map mean? The dreaded red lines mean highway traffic is moving at less than 25 miles per hour and could indicate an accident or congestion on that route. According to the Google Maps site, the colored lines representing traffic conditions on major highways refer to the speed at which one can travel on that road.