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TOPOGRAPHIC MAPS KEY TERMS

Key terms to know for topographic maps

AB
Mapan accurate drawing of part of the earth’s surface
Legendsummary of all the symbols on a map with their meanings
Directionthe line along which anything points
Scalethe relationship between the actual size of something and a representation of it
Linear scalescale is shown using a line broken into portions
Ratio scalescale is shown by a comparison between two numbers
Statement scalewhen the scale is stated in a sentence
Large scale mapshows a small area with a large amount of detail
Small scale mapshows a large area with a small amount of detail
Topographic mapshows the shape of the land being mapped
Area referencea four digit number show one particular square on a topographic map
Grid referencea six digit number are used to find a specific point or feature on a map
Spot heighta single point on a map that shows the exact elevation
Trig pointnormally shows the highest point of an area with a black triangle
Contour lineslinea on a map that join all places of equal height
Contour intervaldifference in height between two adjacent contour lines
Reliefdescribes the shape of the land
Elevationthe height of a point above sea level
Aspectthe direction a slop faces running downhill


OLMC HSIE faculty

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