Topographic maps are a detailed record of a land area, giving geographic positions and elevations for both natural and man-made features. They show the shape of the land the mountains, valleys, and plains by means of brown contour lines (lines of equal elevation above sea level).
What features are shown on a topographic map?
Topographic maps show contours, elevation, forest cover, marsh, pipelines, power transmission lines, buildings and various types of boundary lines such as international, provincial and administrative, and many others.
What are natural features on a topographic map?
A topographic map identifies numerous cultural and natural ground features, which can be divided into the following categories: culture: roads, buildings, urban development, boundaries, railways, power transmission lines ; water:lakes, rivers, streams, swamps, rapids; relief:mountains, valleys, slopes, depressions; ...
What are 3 things a topographic map can show?
Topographic maps are a detailed record of a land area, giving geographic positions and elevations for both natural and man-made features. They show the shape of the land the mountains, valleys, and plains by means of brown contour lines (lines of equal elevation above sea level).
What Cannot be shown on a topographic map?
A word of warning: topographic maps do not show every contour line , rather they choose sample of the lines. For example every 20, 50, 200 metres – depending on the scale of the map. This is called the contour interval of the map.
What are natural features?
Natural features means components and processes present in or produced by nature , including, but not limited to, soil types, geology, slopes, vegetation, surface water, drainage patterns, aquifers, recharge areas, climate, flood plains, aquatic life, and wildlife.
What are the essential features of a map?
- Data Frame. The data frame is the portion of the map that displays the data layers. ...
- Legend. The legend serves as the decoder for the symbology in the data frame. ...
- Title. ...
- North Arrow. ...
- Scale. ...
- Citation.
What are topographic symbols?
A topographic map shows more than contours. The map includes symbols that represent such fea- tures as streets, buildings, streams, and vegetation . These symbols are con- stantly refined to better relate to the features they represent, improve the appearance or readability of the map, or reduce production cost.
Which is the oldest surviving topographical map?
The Turin Papyrus Map is an ancient Egyptian map, generally considered the oldest surviving map of topographical interest from the ancient world.
How do you explain topography?
Topography describes the physical features of an area of land . These features typically include natural formations such as mountains, rivers, lakes, and valleys. Manmade features such as roads, dams, and cities may also be included. Topography often records the various elevations of an area using a topographical map.
What does 3r mean in topography?
Answer: 3r means the relative depth or height of the peninsular well or sand dune respectively is 3 m .
What are two methods of showing relief?
The important methods of representing relief features are hachures, contours, form lines, spot heights, bench marks, trigonometrical points, hill shading, layer-colouring, and so on . Each method has its own merits and demerits in depicting the relief of the land.
What are the 5 rules of a topographic map?
- Contour Lines Never Cross. ...
- Measuring Steepness.
- Stream Flow Direction.
- Contours Close.
- Concentric Circles.
- Elevation Between Lines.
What are the 4 rules of topographic 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.
What are 5 physical features?
Landforms include hills, mountains, plateaus, canyons, and valleys , as well as shoreline features such as bays, peninsulas, and seas, including submerged features such as mid-ocean ridges, volcanoes, and the great ocean basins.
What is the best known natural feature?
- Great Barrier Reef, Australia. ...
- Grand Prismatic Springs, Yellowstone, Wyoming. ...
- Redwood National Park, California. ...
- Mt. ...
- Emerald Landscape, Ireland. ...
- Diverse Ecosystem, Costa Rica. ...
- Gran Sabana, Venezuela. ...
- Desert Sand Dunes, South Africa.
