Elevation means "height above sea level." In the United States, where we have refused to dump the outdated customary system, the elevation key shows the height above sea level in feet as well as in meters. In the rest of the world, people only use meters to measure elevation.
feet and inches
inches and centimeters
scales
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.
The two measurements typically used to show elevation on a map key are contour lines and spot elevations. Contour lines are lines connecting points of equal elevation, while spot elevations provide specific elevation values at certain points on the map.
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.
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.
miles and kilometer
The two elevation keys that are used on some maps using two measurements are kilometers [km] and miles [m]
Sea level and below sea level
feet and meters