East Promontory, Utah - 7.5 Minute Series Topo Map Hand Lens Ground water as a resource

Ground water as a resource is under increased pressure because of droughts

National Geographic's Trails Illustrated map of the park delivers unmatched detail and valuable information to assist you in your exploration of this fascinating land of surreal geologic features shaped by strong winds

and the newest and hottest fly patterns for saltwater

Five cross sections tied to and at the same scale as the map help interpret the likely extent of the geothermal resource

East Promontory, Utah - 7.5 Minute Series Topo Map Hand Lens Ground water as a resourceThe 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