Alton, Utah - 7.5 Minute Series Topo Map Hiking including using GPS-enabled mobile phones

including using GPS-enabled mobile phones

currants to pine nuts

By: Thomas H

By: Robert L

creating order from chaos and demystifying the mysterious

Alton, Utah - 7.5 Minute Series Topo Map Hiking including using GPS-enabled mobile phonesThe 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