DEM (Digital Elevation Model)

A digital elevation model represents data reflective of elevation of the earth’s surfaces. These maps are 3-D representations of the elevations, are usually created by USGS, and use a color scale to represent the data mapped.

The example map is of an Arrangement of elevation profiles in a large scale USGS Digital Elevation Model (USGS, 1987).

Reference URL: https://www.e-education.psu.edu/natureofgeoinfo/c7_p8.html