Elevations, or altitudes, irrespective of longitude and latitude, use spot heights for individual points like summits, and contour-lines to trace levels across the landscape at particular elevations. The heights may be in feet or (more universally now) metres.
It is a reference elevation in feet above sea level. A Benchmark (with a capital B) is an elevation marker established by the Federal Governement (USGS)for the use by land surveyors.
a topographic map
8 different colors
In terms of altitude, the lowest elevation in the Western Hemisphere is in Death Valley. The elevation in the lowest point is 86 meters below sea leve
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scales
The two elevation keys that are used on some maps using two measurements are kilometers [km] and miles [m]
feet, and meters
The two measurements that show land elevation on a map are feet above sea level and meters above sea level. The map itself has contour lines in order to distinguish elevations.
Contour lines and spot elevations are two common elevation measurements found on a map key. A contour line represents a specific elevation, while spot elevations indicate exact elevation at a particular point on the map.
Miles (mi) Kilometres (km)
Contour lines connect points with the same elevation or value, showing the shape and elevation of the land on a map.
the answer is feet or meters above sea level
The scale of contour lines on a topographic (terrain) map is called the "contour interval".
Contour lines are lines drawn on a map connecting points of the same elevation. They help to illustrate the shape and elevation of the land, showing where the land is flat, sloping, or steep. The closer together the contour lines, the steeper the terrain.
The two measurements that show land elevation on a map are feet above sea level and meters above sea level. The map itself has contour lines in order to distinguish elevations.
A topographic map shows the elevation of the Earth's surface using contour lines to represent changes in elevation. The closer together the contour lines, the steeper the terrain; the farther apart, the gentler.