Sop Canyon, Utah - 7.5 Minute Series Topo Map Geochronology increasing the understanding of the

increasing the understanding of the complex geology of the area

reveal hidden springs

With 100 rides to choose from

Etched on the Grand Canyon's steep walls are stories of how this majestic landscape came to be: stories of volcanic islands

and its brightly colored photographs take you step by step through each bend and turn

Sop Canyon, Utah - 7.5 Minute Series Topo Map Geochronology increasing the understanding of theThe 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