We can also convert various thematic maps, as for example, land use, urban structure, or geology into 3-D mode. Examples of these DEM-based products abound on the Internet. Describe what you think you are seeing in the map. An excellent example of a map, in which the elevations are color-coded, is this DEM version showing the state of Wyoming. The data source is a series of 30-second digitized maps.
Lower areas are in green, and higher are in yellows, then brown.
The snow-covered area is the Kaibab Plateau, some 2000 feet higher than the South Rim.