Big Dutch Hollow, Utah - 7.5 Minute Series Topo Map Grand Canyon National Park 253 measurements are from igneous

253 measurements are from igneous rocks

Once the study was underway

This meticulously designed topographic map unveils the heart of the western Uinta range

Clearly mapped trails are shown with mileage markers

while lighter shades highlight higher altitudes

Big Dutch Hollow, Utah - 7.5 Minute Series Topo Map Grand Canyon National Park 253 measurements are from igneousThe 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