A Topographical Map is a map that depicts large-scale detail and relief. This particular Topographic Map is a Global Digital Elevation Model (GDEM) Topographical Map. This map was released by Japan and NASA and is the most complete Topographic Map of the world. Elevations in this map are depicted by color with low elevations appearing in purple, medium elevations appearing in greens and yellows, and high elevations appearing in orange, red, and white.
(Side Note: I had difficulty with this image. I had it inserted in the blog, but when revisiting the blog at a later date, the picture did not appear. The URL for the image is:
http://geology.com/nasa/world-topographic-map/topographic-world-map-lg.jpg ).
