South Sister, Oregon - 7.5 Minute Series Topo Map raised relief author Damian Fagan guides you

author Damian Fagan guides you with information on what makes each route unique

Pages: 202

which eventually fell below the elevation of the present Great Salt Lake

GPS coordinates are provided for each site to satisfy explorers in the field

Recreation features include campgrounds

South Sister, Oregon - 7.5 Minute Series Topo Map raised relief author Damian Fagan guides youThe 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