A 3D representation of the Earth's surface. Its construction includes a height model (a Digital Elevation Model) overlaid with map data relating to features on the surface.

TOP 10

1. travel guides

2. satellite navigation

3. gps

4. directions

5. route planner

6. satnav

7. atlas

8. postcodes

9. gis

10. compass

sat nav systems travel guides route planners travel resources GPS