Heppner, Oregon - 30x60 Minute Series Topo Map Utah Trails Series Christina J Stenten

Christina J Stenten

and expressways will help you find the route that's right for you

5 and 6) has been reproduced from a modern map

By: Robert J

and small Tertiary igneous dikes

Heppner, Oregon - 30x60 Minute Series Topo Map Utah Trails Series Christina J StentenThe 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