What Does Green On A Topographic Map Mean

Geological survey reading topographic maps interpreting the colored lines, areas, and other symbols is the fi rst step in using topographic maps. For example, a scale of 1:25,000 means that 1 inch on the map is the equivalent of 25,000 inches—or just under 0.4 miles—in reality. Many of the symbol feature on maps of the earth will be shown by straight, curved, dashed, or solid lines.

How to read a topographical map a topographic map illustrates the topography, or the shape of the land, at the surface of the earth. For larger buildings, the actual shapes are mapped. (this is the scale used by most usgs topo maps.) the first number, map inches, is always 1.

For example, individual houses may be shown as small black squares.

Many of the symbol feature on maps of the earth will be shown by straight, curved, dashed, or solid lines. Topographic maps use green to denote vegetation such as woods, while blue is used to denote water features like lakes, swamps, rivers, and drainage. Department of the interior u.s. Such maps commonly use reds, white, or purples to represent the highest elevations shown on the map.