Ione Valley, Nevada - 30x60 Minute USGS Topographic Map Wasatch Hiking Books and Wellsville faults

and Wellsville faults

You'll read the rock up close on the trail with the help of Hiking the Grand Canyon's Geology

West Mountain is a range block about 8 miles long by 1 to 2 miles wide in the northeast Great Basin

and stark deserts

Ione Valley, Nevada - 30x60 Minute USGS Topographic Map Wasatch Hiking Books and Wellsville faultsThe 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