Dugway Proving Ground NW, Utah - 7.5 Minute Series Topo Map SH-ESA-2 Geological Survey topographic maps

Geological Survey topographic maps

Pages: 295

The ZNP Geologic-Hazard Study Area is a 154-square-mile area that encompasses Zion Canyon

explorationists working in the area

by less saline normal seawater

Dugway Proving Ground NW, Utah - 7.5 Minute Series Topo Map SH-ESA-2 Geological Survey topographic mapsThe 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