Tucker, Utah - 7.5 Minute Series Topo Map Images of America and Geikie

and Geikie

including Mirror Lake

Ground-water resources of San Juan County

Willis and H

One of the plates deals with suitability for wastewater disposal in septic-tank soil-absoprtion systems

Tucker, Utah - 7.5 Minute Series Topo Map Images of America and GeikieThe 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