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2. Digital elevation model - Wikipedia

   en.wikipedia.org/wiki/Digital_elevation_model

   A digital elevation model (DEM) or digital surface model (DSM) is a 3D computer graphics representation of elevation data to represent terrain or overlaying objects, commonly of a planet, moon, or asteroid. A "global DEM" refers to a discrete global grid. DEMs are used often in geographic information systems (GIS), and are the most common basis ...

3. Topographic map - Wikipedia

   en.wikipedia.org/wiki/Topographic_map

   In modern mapping, a topographic map or topographic sheet is a type of map characterized by large- scale detail and quantitative representation of relief features, usually using contour lines (connecting points of equal elevation), but historically using a variety of methods. Traditional definitions require a topographic map to show both ...

4. List of online map services - Wikipedia

   en.wikipedia.org/wiki/List_of_online_map_services

   United States. Apple Maps - covers the whole country. Bing Maps – covers the whole country. Google Maps - covers the whole country. Libre Map Project. MapQuest - covers the whole country. The National Map by the United States Geological Survey. Roadtrippers - covers the whole country. TerraServer-USA - covers the whole country.

5. Maps 3D PRO is a best in class GPS/Nav app for outdoor ... - AOL

   www.aol.com/news/2014-12-09-maps-3d-pro-is-a...

   Maps 3D PRO (U$4.99) is a entirely different animal. Designed for hikers, cyclists, skiers and outdoor activities, the app provides 2D and 3D map views that show details of terrain and altitude.

6. Virtual globe - Wikipedia

   en.wikipedia.org/wiki/Virtual_globe

   A virtual globe is a three-dimensional (3D) software model or representation of Earth or another world. A virtual globe provides the user with the ability to freely move around in the virtual environment by changing the viewing angle and position. Compared to a conventional globe, virtual globes have the additional capability of representing ...

7. Bing Maps Platform - Wikipedia

   en.wikipedia.org/wiki/Bing_Maps_Platform

   Bing Maps Platform (previously Microsoft Virtual Earth) is a geospatial mapping platform produced by Microsoft. It allows developers to create applications that layer location-relevant data on top of licensed map imagery. The imagery includes samples taken by satellite sensors, aerial cameras (including 45 degree oblique "bird's eye" aerial ...