Lab 7 - Topographic maps


A topographic map is an accurate two-dimensional representation of the three-dimensional surface of a selected portion of the earth's surface. The purpose of a topographic map is to show the location and distribution of various features of the land surface in their true spatial relationships as they would appear if viewed from a position directly above the map area. Topographic maps also show the location of man-made features, such as railroads, highways, houses, metropolitan areas, through the use of standard Topographic Map Symbols.

Important aspects of working with topographic maps are detailed further in the sections outlined below.

Exercise 7-1

Exercise 7-2