Post Office Flat, New Mexico - 7.5 Minute Series Topo Map National Recreation Area home or library

home or library

uniform grain size

By: Leslie Kelen

By: Craig Childs

Their heads filled with images of glory and battle

Post Office Flat, New Mexico - 7.5 Minute Series Topo Map National Recreation Area home or libraryThe distinctive characteristic of a topographic map is that the shape of the Earth's surface is shown by contour lines. Contours are imaginary lines that join points of equal elevation on the surface of the land above or below a reference surface, such as mean sea level. Contours make it possible to measure the height of mountains, depths of the ocean bottom, and steepness of slopes. A topographic map shows more than contours. The map also includes