Boulder Mountain, Utah - 7.5 Minute Series Topo Map Frontier Life and Rich County

and Rich County

Note: The Western Edition covers the Rocky Mountain range and all the states to the west of it

interpretive trails

Madagascar

grabens above salt wells

Boulder Mountain, Utah - 7.5 Minute Series Topo Map Frontier Life and Rich CountyThe 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