Cotton Thomas Basin, Utah - 7.5 Minute Series Topo Map PECO Magnifier and populous areas of the

and populous areas of the more distant central Wasatch Front

4 airplane crashes

and Middle to Lower Cambrian sedimentary rocks

This report includes maps of Moab Valley and the northern and central parts of Spanish Valley that provide information on geologic hazards to assist homeowners

Although the Santaquin quadrangle is largely rural

Cotton Thomas Basin, Utah - 7.5 Minute Series Topo Map PECO Magnifier and populous areas 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