Mount Trumbull NE, Arizona - 7.5 Minute Series Topo Map SH-6A • Water availability information

• Water availability information

000 1″ = 12

and the heroism of smoke jumpers and park rangers

WRB-25 Effects of breaching the Southern Pacific Railroad Causeway

find shelter

Mount Trumbull NE, Arizona - 7.5 Minute Series Topo Map SH-6A • Water availability informationThe 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