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It is a shaded relief map.
Shade and sunlight on a map gives a pseudo-3D effect. This makes it easier to visualise hills and mountains on what is a flat sheet of paper.
what are the separate colors on a relief map?
high relief map is a map with a lot of mountains, or a lot of different elevations.
it's a topography map or topographical map! whichever way you spin it, it is a map that shows relief.