North Ogden, Utah - 7.5 Minute Series Topo Map Nearby States Hiking Books vertical finger cracks

vertical finger cracks

have been found in North America and are mentioned or briefly described

fishermen trails

Salt Valley

Two appendix tables summarize significant data on the activity of mapped features

North Ogden, Utah - 7.5 Minute Series Topo Map Nearby States Hiking Books vertical finger cracksThe 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